phrases to use for literature review

17 strong academic phrases to write your literature review (+ real examples)

A well-written academic literature review not only builds upon existing knowledge and publications but also involves critical reflection, comparison, contrast, and identifying research gaps. The following 17 strong academic key phrases can assist you in writing a critical and reflective literature review.

Academic key phrases to present existing knowledge in a literature review

The topic has received significant interest within the wider literature..

Example: “ The topic of big data and its integration with AI has received significant interest within the wider literature .” ( Dwivedi et al. 2021, p. 4 )

The topic gained considerable attention in the academic literature in…

Example:  “ The relationship between BITs and FDI gained considerable attention in the academic literature in the last two decades .” ( Amendolagine and Prota, 2021, p. 173 )

Studies have identified…

Example: “ Studies have identified the complexities of implementing AI based systems within government and the public sector .” ( Dwivedi et al. 2021, p. 6 )

Researchers have discussed…

Recent work demonstrated that….

Example: “Recent work demonstrated that dune grasses with similar morphological traits can build contrasting landscapes due to differences in their spatial shoot organization.” ( Van de Ven, 2022 et al., p. 1339 )

Existing research frequently attributes…

Prior research has hypothesized that…, prior studies have found that….

Example:  “ Prior studies have found that court-referred individuals are more likely to complete relationship violence intervention programs (RVIP) than self-referred individuals. ” ( Evans et al. 2022, p. 1 )

Academic key phrases to contrast and compare findings in a literature review

While some scholars…, others…, the findings of scholar a showcase that… . scholar b , on the other hand, found….

Example: “ The findings of Arinto (2016) call for administrators concerning the design of faculty development programs, provision of faculty support, and strategic planning for online distance learning implementation across the institution. Francisco and Nuqui (2020) on the other hand found that the new normal leadership is an adaptive one while staying strong on their commitment. ” ( Asio and Bayucca, 2021, p. 20 )

Interestingly, all the arguments refer to…

Example:  “Interestingly, all the arguments above refer to daily role transitions—more specifically: role transitions on teleworking days—as an important explanatory mechanism for both the possible conflict-reducing effect and the potential conflict enhancing effects of telework.”  ( Delanoeije et al., 2019, p. 1845 )

This argument is similar to…

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Academic key phrases to highlight research gaps in a literature review

Yet, it remains unknown how…, there is, however, still little research on…, existing studies have failed to address….

Example: “ University–industry relations (UIR) are usually analysed by the knowledge transfer channels, but existing studies have failed to address what knowledge content is being transferred – impacting the technology output aimed by the partnership.”  (Dalmarco et al. 2019, p. 1314 )

Several scholars have recommended to move away…

New approaches are needed to address…, master academia, get new content delivered directly to your inbox, 26 powerful academic phrases to write your introduction (+ real examples), 13 awesome academic phrases to write your methodology (+ real examples), related articles, how to paraphrase a quote: 4 simple strategies, the different stages in the manuscript publication process, energy management in academia, how to disagree with reviewers (with examples).

Academic Phrasebank

Referring to sources.

• GENERAL LANGUAGE FUNCTIONS
• Being cautious
• Being critical
• Classifying and listing
• Compare and contrast
• Defining terms
• Describing trends
• Describing quantities
• Explaining causality
• Giving examples
• Signalling transition
• Writing about the past

One of the distinguishing features of academic writing is that it is informed by what is already known, what work has been done before, and/or what ideas and models have already been developed. Thus, in academic texts, writers frequently make reference to other studies and to the work of other authors. It is important that writers guide their readers through this literature. This section of  Academic Phrasebank  lists some of the phrases that writers may use for this purpose.

A note on the literature review: It is the purpose of the literature review section of a paper or dissertation to show the reader, in a systematic way, what is already known about the research topic as a whole, and to outline the key ideas and theories that help us to understand this. As well as being systematic, the review should be evaluative and critical of the studies or ideas which are relevant to the current work. For example, you may think a particular study did not investigate some important aspect of the area you are researching, that the author(s) failed to notice a weakness in their methods, or that their conclusion is not well-supported (refer to  Being Critical ).

A note on referencing style: The way a writer refers to other sources varies somewhat across different disciplines. In some cases, where the individual author is important, the author’s name will be the main subject of the sentence; in other cases, the author’s name may only be mentioned in brackets ( … ) or via a number notation system (e.g. footnotes and endnotes). The ‘author as subject’ style is less common in the empirical disciplines (sciences) and more commonly used in the humanities. Different referencing systems are used in different disciplines. In the majority of the examples given here, the Harvard in-text referencing system has been used.

A note on verb tenses: For general reference to the literature, the present perfect tense (have/has + verb participle) tends to be used. For reference to specific studies carried out in the past, the simple past tense is most commonly used. This is normally the case where a specific date or point in time in the past forms a part of the sentence. When referring to the words or ideas of writers, the present tense is often used if the ideas are still relevant, even if the author is no longer alive. The examples given below reflect these general patterns, but these are by no means rigid.

General comments on the relevant literature

The literature on X has highlighted several … Different theories exist in the literature regarding … More recent attention has focused on the provision of … There are relatively few historical studies in the area of … A large and growing body of literature has investigated … Much of the literature since the mid-1990s emphasises the … Much of the current literature on X pays particular attention to … There is a large volume of published studies describing the role of … The existing literature on X is extensive and focuses particularly on … There is a relatively small body of literature that is concerned with … The generalisability of much published research on this issue is problematic. A considerable amount of literature has been published on X. These studies … The academic literature on X has revealed the emergence of several contrasting themes. Previous research findings into X have been inconsistent and contradictory (Smith, 1996; …).

Previous research: a historical perspective

Research into X has a long history. For many years, this phenomenon was surprisingly neglected by … Only in the past ten years have studies of X directly addressed how … Prior to the work of Smith (1983), the role of X was largely unknown. Over the past decade, most research in X has emphasized the use of … In recent years, there has been an increasing amount of literature on … Early examples of research into X include … (Smith, 1962; Jones, 1974). During the past 30 years, much more information has become available on … The first serious discussions and analyses of X emerged during the 1970s with … Over the past two decades, major advances in molecular biology have allowed … Historically, research investigating the factors associated with X has focused on … It is only since the work of Smith (2001) that the study of X has gained momentum. The construct of X was first articulated by Smith (1977) and popularised in his book: … Around the early 1960s, small-scale research and case studies began to emerge linking … It was not until the late 1960s that historians considered X worthy of scholarly attention. Awareness of X is not recent, having possibly first been described in the 5th century BCE by …

Previous research: methodological approaches taken

Most research on X has been carried out in … Most researchers investigating X have utilised … Using this approach, researchers have been able to … Several systematic reviews of X have been undertaken. The vast majority of studies on X have been quantitative. What we know about X is largely based on observational studies. There are a number of large cross-sectional studies which suggest … Much of the previous research on X has been exploratory in nature. Much of the X research has focused on identifying and evaluating the … What we know about X is largely based upon empirical studies that investigate … Publications that concentrate on X more frequently adopt a historical or chronological approach …

Previous research: area investigated

To date, several studies have investigated … A number of studies have begun to examine … Various studies have assessed the efficacy of … Researchers attempted to evaluate the impact of … A great deal of previous research into X has focused on … Several studies have used longitudinal data to examine … Previous studies have explored the relationships between X and Y. Twenty cohort study analyses have examined the relationship between … A number of authors have considered the effects of … (Smith, 2003; Jones, 2004). At least 120 case-control studies worldwide have examined the relationship between … Numerous studies have attempted to explain … (for example, Smith, 1996; Jones, 1998; …).

Previous research: what has been established or proposed

Several lines of evidence suggest that … Previous research has established that … Data from several studies suggest that … Recent evidence suggests that … (Smith, 2020; …). It is now well established from a variety of studies that … New findings amongst X provides further evidence that …

A number of studies have postulated a convergence between … Recently, considerable evidence has accumulated to show that … Surveys such as that conducted by Smith (2015) have shown that … Many recent studies (e.g. Smith, 2019; Jones, 2020) have shown that … Traditionally, it has been argued that … (e.g. Smith, 1960; Jones, 1972). Several biographies of Brown have been published. Smith (2016) presents …

In previous studies on X, different variables have been found to be related to … Many historians have argued that … (e.g. Jones, 1997; Brown, 1999; Smith, 2019). There is a consensus among social scientists that … (e.g. Smith, 2019; Jones, 2020; … Data from several sources have identified the increased X and Y associated with obesity. Recently, in vitro studies have shown that X can … (Smith et al. , 2018; Jones et al. , 2021). It has been demonstrated that a high intake of X results in damage to … (Smith, 2015; …).

Stating what is currently known about the topic

X increases when … (Smith, 2015) X is able to affect Y (Smith, 2015; Jones, 2020). X is positively related to Y (Smith, 2015; Jones, 2020). X is proportional to Y as expressed by the… (Smith, 2015). X is one of the most important … (Smith, 2015; Jones, 2020). X is one of the most intense reactions following Y (Jones, 2020). A relationship exists between X and Y (Smith, 2015; Jones, 2020). X is a principal determining factor of Y (Smith, 2015; Jones, 2020). There is an unambiguous relationship between X and Y (Smith, 2015). X is significantly reduced during the first months of … (Smith, 2015; Jones, 2020). X has been found to oppose the anti-inflammatory actions of Y on Z (Smith, 2020).

Reference to a previous investigation: researcher prominent

Smith’s comparative study (2017) found that … Jones’s comprehensive review concluded that … Brown’s (1998) model of X assumes three main … Smith’s cross-country analysis (2017) showed that … Jones’s (2010) review of the literature concluded that … Brown’s (2022) recent analysis of X provides a strong critique of …

Reference to a previous investigation: time prominent

In 1959, a seminal article was published entitled … Following this period, Smith actively searched for X. In the 1950s, Smith pointed to some of the ways in which … Thirty years later, Smith (1974) reported three cases of X which … Almost 20 years ago, Jones (1995) formulated his X theory, centred around …

Reference to a previous investigation: investigation prominent

One longitudinal study found that … A seminal study in this area is the work of … One study by Smith (2014) examined the trend in … A recent study by Smith and Jones (2012) involved … A qualitative study by Smith (2003) described how … A recent systematic literature review concluded that … Preliminary work on X was undertaken by Jones (1992). A longitudinal study of X by Smith (2012) reports that … A key study comparing X and Y is that of Smith (2010), in which … The first systematic study of X was reported by Smith  et al.  in 1986. Detailed examination of X by Smith and Jones (1961) showed that … Analysis of the genes involved in X was first carried out by Smith  et al.  (1983). A significant analysis and discussion on the subject was presented by Smith (1988). The study of the structural behaviour of X was first carried out by Jones  et al.  (1986). A small scale study by Smith (2015) reached different conclusions, finding no increase in … The study by Jones (1990) offers probably the most comprehensive empirical analysis of …

Reference to a previous investigation: topic prominent

To determine the effects of X, Jones  et al . (2005) compared … X was originally isolated from Y in a soil sample from … (Jones  et al. , 1952). The electronic spectroscopy of X was first studied by Smith and Jones in 1970. X formed the central focus of a study by Smith (2002) in which the author found … To better understand the mechanisms of X and its effects, Jones (2013) analysed the … X was first demonstrated experimentally by Pavlov (Smith, 2002). In his seminal study … The acid-catalyzed condensation reaction between X and Y was first reported by Smith in 1872. The way in which X is regulated was studied extensively by Smith and colleagues (Smith  et al.  1995 and 1998).

Reference to what other writers do in their published work

In Chapter 2, Smith provides us with a number of important … In the subsequent chapter, Smith examines the extent to which … By drawing on the concept of X, Smith has been able to show that … Some analysts (e.g. Smith, 2015) have attempted to draw fine distinctions between … Drawing on an extensive range of sources, the authors set out the different ways in which … Other authors (see Smith, 2010; Jones, 2014) question the usefulness of such an approach.  

Reference to another writer's idea or position

As noted by Smith (2003) X is far more cost effective, and therefore … According to Smith (2003), preventative medicine is far more cost effective, and therefore … 

Synthesising material: supporting evidence or ideas

Similarly, Jones (2015) found that X … This is consistent with the data obtained by … Smith (1995) makes a similar point in his study of X … In the same vein, Smith (1995) in his book XYZ notes This view is supported by Jones (2015) who writes that Along the same lines, Smith (1995) subsequently argued that … Smith argues that her data support Jones’s (1995) view that Jones’s (1986) work on X is complemented by Smith’s (2009) study of Almost every paper that has been written on X includes a section relating to A broadly similar point has also recently been made by Johnson (2019), who …

Synthesising material: contrasting evidence or ideas

Other writers have argued that … Other studies have concluded that … Unlike Smith, Jones (2013) argues that In contrast to Smith, Jones (2013) argues that Smith (2010) presents an X account, whilst Jones (2011) While Smith (2008) focuses on X, Jones (2009) is more concerned with A broader perspective has been adopted by Smith (213) who argues that Contrary to previously published studies, Jones et al. demonstrated the efficacy of… This result conflicts with Smith’s (1965) previously mentioned study which found that … Conversely, Smith (2010) reported no significant difference in mortality between X and Y.

Some ways of introducing quotations

Commenting on X, Smith (2003) argues: ‘… …’ As Smith (2004: 215) states: ‘there are many good reasons to be sceptical’. As Smith argues: ‘In the past, the purpose of education was to …’ (Smith, 2000:150). In the final part of the  Theses on Feuerbach , Marx writes: ‘Philosophers have hitherto only …’ Smith concludes: ‘The idea of development stands today like a ruin in …’ (Smith, 1992: 156).

Summarising the review or parts of the review

Together, these studies indicate that … Overall, these studies highlight the need for … Considering all of this evidence, it seems that … Collectively, these studies outline a critical role for… In all the studies reviewed here, X is recognised as … The evidence presented in this section suggests that … The studies presented thus far provide evidence that … Taken together, these studies support the notion that … Overall, there seems to be some evidence to indicate that … Together these studies provide important insights into the … All of the studies reviewed here support the hypothesis that … Two important themes emerge from the studies discussed so far: However, such studies remain narrow in focus dealing only with … The evidence reviewed here seems to suggest a pertinent role for … These studies clearly indicate that there is a relationship between … In view of all that has been mentioned so far, one may suppose that … There remain several aspects of X about which relatively little is known.

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Academic Phrases for Writing Literature Review Section of a Research Paper

Overview |   Abstract   | Introduction | Literature Review | Materials & Methods | Results & Discussion | Conclusion & Future Work | Acknowledgements & Appendix

The literature review should clearly demonstrate that the author has a good knowledge of the research area. Literature review typically occupies one or two passages in the introduction section. A well-written literature review should provide a critical appraisal of previous studies related to the current research area rather than a simple summary of prior works. The author shouldn’t shy away from pointing out the shortcomings of previous works. However, criticising other’s work without any basis can weaken your paper. This is a perfect place to coin your research question and justify the need for such a study. It is also worth pointing out towards the end of the review that your study is unique and there is no direct literature addressing this issue. Add a few sentences about the significance of your research and how this will add value to the body of knowledge.

The literature review section of your research paper should include the following:

• Previous literature
• Limitations of previous research
• Research questions
• Research to be explored

1. Previous literature

The literature review shows that __ Previous research showed __ Seminal contributions have been made by __ A series of recent studies has indicated that __ Several theories have been proposed to __, some focusing on __, others on __ There has been numerous studies to investigate __ This has been used in several studies to assess __ Previous studies have shown __ Several studies suggest that __ This has also been explored in prior studies by __ Prior research suggests that __ Previous studies have emphasized __ The majority of prior research has applied __ Most early studies as well as current work focus on __ For instance, the following studies were conducted on __ Studies of __are well documented, it is also well acknowledged that __ A number of authors have recognized __ Some authors have also suggested that  __ Some authors have driven the further development of __ This has been discussed by a great number of authors in literature. For example, research has provided evidence for __ The authors bring some information about the background of the problem, __ As has been previously reported in the literature, __ A large number of existing studies in the broader literature have examined __ The literature review shows that __ There exists a considerable body of literature on  __ In short, the literature pertaining to __ strongly suggests that __ Over time, an extensive literature has developed on __ This section presents a review of recent literature on __ This paper begins with a short review of the literature regarding the __ Several methods are reported in the literature to address this issue. There is a wide choice of __ available in the literature. This section reviews the literature related to __ It was reported in literature that __ A recent study by __ concluded that __ In the light of reported __ it is conceivable that __ The method introduced by __ has the advantage that __ One method employed by __ is __ A more comprehensive description can be found in __ For example, recent research suggests that __ This was successfully established as described by __ The author employed a __ methodology which prescribes the use of __

2. Limitations of previous research

A number of questions regarding __ remain to be addressed. A closer look to the literature on __, however, reveals a number of gaps and shortcomings. This question has previously never been addressed because__ Most studies have relied on __ Previous studies by __ cannot be considered as conclusive because __ Previous studies have almost exclusively focused on __ This has been previously assessed only to a very limited extent because __ In the present studies __ were constrained to __ In previous studies were limited to __ Although results appear consistent with prior research, they appear inconsistent with __ These are previously unstudied because __ As far as we know, no previous research has investigated __ Moreover, although research has illuminated __ no study to date has examined __ Despite decades of research, this continues to be debated among __ This section points out some of the problems encountered in the extant research. Although there are many studies, the research in __ remains limited. However, the existing research has many problems in representing __ The literature on __ is less consistent Historically, there has been a great deal of confusion in the literature regarding __ This approach remains briefly addressed in the literature. These are rarely analyzed in the literature as __ There are key questions and notions that are still not discussed in the literature __ This is not clearly presented in the literature because __ This paper addresses the need for __, so far lacking in the scientific literature. To fill this literature gap, this paper identifies __ Only a few works in literature demonstrate __ Although studies have been conducted by many authors, this problem is still insufficiently explored. To our knowledge, no prior studies have examined __ However, the existing research has many problems in __ Therefore, important issue in the literature is __ However, we argue that previous literature suffers from certain weaknesses: __ Previous research can only be considered a first step towards a more profound understanding of __ The previous studies reveal that __ are usually the most problematic to __

3. Research questions

More specific research questions will be introduced and investigated in __ A further question is whether __ Finally, another promising line of research would be __ The study addresses several further questions on __ Some of the interesting questions in this context are __ In order to address the questions outlined above, we report here __ These questions are of central interest as much recent research in __ Furthermore, __ is arguably an important question to be addressed. The question now is how __ can be used to explain __ Study addresses the research question __ In order to properly address this question, we __ An important question associated with __ is __ A critical open question is whether __ A still unsolved question is whether __ This remains an open question as __ This question has previously never been addressed because __ This study offers a test of __ research question Study addresses the research question __ Even in general __ research strategies is needed to explain __ The researcher should be interested here in __ Many questions remain unanswered __ There are some potentially open questions about the validity of __ The question that then naturally arises is __ The question then becomes how best to define__ This was an important question to study as __

4. Research to be explored

A more systematic and theoretical analysis is required for __ As the authors note earlier, more work is necessary to__ Additional studies to understand more completely the key tenets of __ are required. The unexpected findings signal the need for additional studies to understand more about __ This paper addresses __, so far lacking in the scientific literature. A new approach is therefore needed for __ One of the tough challenges for all researchers in this domain is __

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Building a Strong Literature Review: Words and Phrases to Include

• backlinkworks
• Writing Articles & Reviews
• December 27, 2023

A literature review is an essential part of any academic paper or research project. IT provides a comprehensive overview of the existing literature on a specific topic, identifies gaps in the current knowledge, and sets the context for the research to be conducted. Building a strong literature review requires careful selection of words and phrases to ensure that IT is well-structured, informative, and persuasive. In this article, we will discuss the words and phrases that are crucial for building a strong literature review.

Words and Phrases to Include in a Literature Review

1. “According to” – This phrase is commonly used to introduce evidence from scholarly sources. For example, “According to Smith (2016), the impact of climate change on biodiversity is a pressing concern.”

2. “ IT has been argued that” – This phrase is useful for presenting different viewpoints on a topic. For example, “ IT has been argued that technological advancements have both positive and negative effects on societal well-being.”

3. “Previous research has shown” – This phrase is effective for referencing existing studies that are relevant to the research topic. For example, “Previous research has shown a strong correlation between smoking and lung cancer.”

4. “A significant body of literature” – This phrase is used to indicate the volume and depth of existing research on a particular topic. For example, “A significant body of literature exists on the psychological impact of social media use.”

5. “In line with previous studies” – This phrase is used to establish continuity with existing research findings. For example, “In line with previous studies, our results indicate a positive association between exercise and mental health.”

6. “Key findings suggest” – This phrase is useful for summarizing the main conclusions of the literature review. For example, “Key findings suggest that mindfulness meditation can improve attention and cognitive performance.”

7. “ IT is evident that” – This phrase is used to emphasize the clarity or strength of evidence supporting a particular argument. For example, “ IT is evident that socioeconomic status has a profound impact on educational outcomes.”

8. “This is consistent with the findings of” – This phrase is used to demonstrate the alignment of the current research with existing literature. For example, “This is consistent with the findings of prior studies that have highlighted the importance of early childhood education.”

9. “Existing literature has identified” – This phrase is useful for highlighting specific issues or phenomena that have been documented in prior research. For example, “Existing literature has identified a range of factors that influence consumer purchasing behavior.”

10. “This study builds upon previous research by” – This phrase is used to emphasize the novelty or contribution of the current research. For example, “This study builds upon previous research by examining the long-term effects of climate change on coastal ecosystems.”

A strong literature review is essential for providing a solid foundation for any research endeavor. By incorporating the words and phrases discussed in this article, researchers can effectively convey the relevance, scope, and depth of the existing literature on their chosen topic. Careful selection and deployment of these words and phrases can enhance the clarity, coherence, and persuasiveness of the literature review, ultimately contributing to the overall strength and quality of the research project.

What is the purpose of a literature review?

A literature review serves several purposes, including providing an overview of existing research on a specific topic, identifying gaps in the current knowledge, and setting the context for a new research study. IT also helps to demonstrate the researcher’s familiarity with and understanding of the relevant literature in their field.

How do I structure a literature review?

A literature review typically follows a structured format, including an introduction, the body of the review (organized by themes or topics), and a conclusion. IT should present a coherent and logical argument, synthesizing and critically analyzing the existing literature on the chosen topic.

What are some common mistakes to avoid in a literature review?

Common mistakes in a literature review include focusing too much on summarizing individual studies without providing critical analysis, failing to clearly articulate the relevance of the literature to the research topic, and not including a sufficient variety of sources to support the argument being made. IT is also important to avoid presenting personal opinions without backing them up with evidence from the literature.

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• How to Write a Literature Review | Guide, Examples, & Templates

How to Write a Literature Review | Guide, Examples, & Templates

Published on January 2, 2023 by Shona McCombes . Revised on September 11, 2023.

What is a literature review? A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods, and gaps in the existing research that you can later apply to your paper, thesis, or dissertation topic .

There are five key steps to writing a literature review:

• Search for relevant literature
• Evaluate sources
• Identify themes, debates, and gaps
• Outline the structure
• Write your literature review

A good literature review doesn’t just summarize sources—it analyzes, synthesizes , and critically evaluates to give a clear picture of the state of knowledge on the subject.

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Table of contents

What is the purpose of a literature review, examples of literature reviews, step 1 – search for relevant literature, step 2 – evaluate and select sources, step 3 – identify themes, debates, and gaps, step 4 – outline your literature review’s structure, step 5 – write your literature review, free lecture slides, other interesting articles, frequently asked questions, introduction.

• Quick Run-through
• Step 1 & 2

When you write a thesis , dissertation , or research paper , you will likely have to conduct a literature review to situate your research within existing knowledge. The literature review gives you a chance to:

• Demonstrate your familiarity with the topic and its scholarly context
• Develop a theoretical framework and methodology for your research
• Position your work in relation to other researchers and theorists
• Show how your research addresses a gap or contributes to a debate
• Evaluate the current state of research and demonstrate your knowledge of the scholarly debates around your topic.

Writing literature reviews is a particularly important skill if you want to apply for graduate school or pursue a career in research. We’ve written a step-by-step guide that you can follow below.

Receive feedback on language, structure, and formatting

Professional editors proofread and edit your paper by focusing on:

• Academic style
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See an example

Writing literature reviews can be quite challenging! A good starting point could be to look at some examples, depending on what kind of literature review you’d like to write.

• Example literature review #1: “Why Do People Migrate? A Review of the Theoretical Literature” ( Theoretical literature review about the development of economic migration theory from the 1950s to today.)
• Example literature review #2: “Literature review as a research methodology: An overview and guidelines” ( Methodological literature review about interdisciplinary knowledge acquisition and production.)
• Example literature review #3: “The Use of Technology in English Language Learning: A Literature Review” ( Thematic literature review about the effects of technology on language acquisition.)
• Example literature review #4: “Learners’ Listening Comprehension Difficulties in English Language Learning: A Literature Review” ( Chronological literature review about how the concept of listening skills has changed over time.)

You can also check out our templates with literature review examples and sample outlines at the links below.

Download Word doc Download Google doc

Before you begin searching for literature, you need a clearly defined topic .

If you are writing the literature review section of a dissertation or research paper, you will search for literature related to your research problem and questions .

Make a list of keywords

Start by creating a list of keywords related to your research question. Include each of the key concepts or variables you’re interested in, and list any synonyms and related terms. You can add to this list as you discover new keywords in the process of your literature search.

• Social media, Facebook, Instagram, Twitter, Snapchat, TikTok
• Body image, self-perception, self-esteem, mental health
• Generation Z, teenagers, adolescents, youth

Search for relevant sources

Use your keywords to begin searching for sources. Some useful databases to search for journals and articles include:

• Your university’s library catalogue
• Google Scholar
• Project Muse (humanities and social sciences)
• Medline (life sciences and biomedicine)
• EconLit (economics)
• Inspec (physics, engineering and computer science)

You can also use boolean operators to help narrow down your search.

Make sure to read the abstract to find out whether an article is relevant to your question. When you find a useful book or article, you can check the bibliography to find other relevant sources.

You likely won’t be able to read absolutely everything that has been written on your topic, so it will be necessary to evaluate which sources are most relevant to your research question.

For each publication, ask yourself:

• What question or problem is the author addressing?
• What are the key concepts and how are they defined?
• What are the key theories, models, and methods?
• Does the research use established frameworks or take an innovative approach?
• What are the results and conclusions of the study?
• How does the publication relate to other literature in the field? Does it confirm, add to, or challenge established knowledge?
• What are the strengths and weaknesses of the research?

Make sure the sources you use are credible , and make sure you read any landmark studies and major theories in your field of research.

You can use our template to summarize and evaluate sources you’re thinking about using. Click on either button below to download.

Take notes and cite your sources

As you read, you should also begin the writing process. Take notes that you can later incorporate into the text of your literature review.

It is important to keep track of your sources with citations to avoid plagiarism . It can be helpful to make an annotated bibliography , where you compile full citation information and write a paragraph of summary and analysis for each source. This helps you remember what you read and saves time later in the process.

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To begin organizing your literature review’s argument and structure, be sure you understand the connections and relationships between the sources you’ve read. Based on your reading and notes, you can look for:

• Trends and patterns (in theory, method or results): do certain approaches become more or less popular over time?
• Themes: what questions or concepts recur across the literature?
• Debates, conflicts and contradictions: where do sources disagree?
• Pivotal publications: are there any influential theories or studies that changed the direction of the field?
• Gaps: what is missing from the literature? Are there weaknesses that need to be addressed?

This step will help you work out the structure of your literature review and (if applicable) show how your own research will contribute to existing knowledge.

• Most research has focused on young women.
• There is an increasing interest in the visual aspects of social media.
• But there is still a lack of robust research on highly visual platforms like Instagram and Snapchat—this is a gap that you could address in your own research.

There are various approaches to organizing the body of a literature review. Depending on the length of your literature review, you can combine several of these strategies (for example, your overall structure might be thematic, but each theme is discussed chronologically).

Chronological

The simplest approach is to trace the development of the topic over time. However, if you choose this strategy, be careful to avoid simply listing and summarizing sources in order.

Try to analyze patterns, turning points and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred.

If you have found some recurring central themes, you can organize your literature review into subsections that address different aspects of the topic.

For example, if you are reviewing literature about inequalities in migrant health outcomes, key themes might include healthcare policy, language barriers, cultural attitudes, legal status, and economic access.

Methodological

If you draw your sources from different disciplines or fields that use a variety of research methods , you might want to compare the results and conclusions that emerge from different approaches. For example:

• Look at what results have emerged in qualitative versus quantitative research
• Discuss how the topic has been approached by empirical versus theoretical scholarship
• Divide the literature into sociological, historical, and cultural sources

Theoretical

A literature review is often the foundation for a theoretical framework . You can use it to discuss various theories, models, and definitions of key concepts.

You might argue for the relevance of a specific theoretical approach, or combine various theoretical concepts to create a framework for your research.

Like any other academic text , your literature review should have an introduction , a main body, and a conclusion . What you include in each depends on the objective of your literature review.

The introduction should clearly establish the focus and purpose of the literature review.

Depending on the length of your literature review, you might want to divide the body into subsections. You can use a subheading for each theme, time period, or methodological approach.

As you write, you can follow these tips:

• Summarize and synthesize: give an overview of the main points of each source and combine them into a coherent whole
• Analyze and interpret: don’t just paraphrase other researchers — add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
• Critically evaluate: mention the strengths and weaknesses of your sources
• Write in well-structured paragraphs: use transition words and topic sentences to draw connections, comparisons and contrasts

In the conclusion, you should summarize the key findings you have taken from the literature and emphasize their significance.

When you’ve finished writing and revising your literature review, don’t forget to proofread thoroughly before submitting. Not a language expert? Check out Scribbr’s professional proofreading services !

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If you want to know more about the research process , methodology , research bias , or statistics , make sure to check out some of our other articles with explanations and examples.

• Sampling methods
• Simple random sampling
• Stratified sampling
• Cluster sampling
• Likert scales
• Reproducibility

 Statistics

• Null hypothesis
• Statistical power
• Probability distribution
• Effect size
• Poisson distribution

Research bias

• Optimism bias
• Cognitive bias
• Implicit bias
• Hawthorne effect
• Anchoring bias
• Explicit bias

A literature review is a survey of scholarly sources (such as books, journal articles, and theses) related to a specific topic or research question .

It is often written as part of a thesis, dissertation , or research paper , in order to situate your work in relation to existing knowledge.

There are several reasons to conduct a literature review at the beginning of a research project:

• To familiarize yourself with the current state of knowledge on your topic
• To ensure that you’re not just repeating what others have already done
• To identify gaps in knowledge and unresolved problems that your research can address
• To develop your theoretical framework and methodology
• To provide an overview of the key findings and debates on the topic

Writing the literature review shows your reader how your work relates to existing research and what new insights it will contribute.

The literature review usually comes near the beginning of your thesis or dissertation . After the introduction , it grounds your research in a scholarly field and leads directly to your theoretical framework or methodology .

A literature review is a survey of credible sources on a topic, often used in dissertations , theses, and research papers . Literature reviews give an overview of knowledge on a subject, helping you identify relevant theories and methods, as well as gaps in existing research. Literature reviews are set up similarly to other  academic texts , with an introduction , a main body, and a conclusion .

An  annotated bibliography is a list of  source references that has a short description (called an annotation ) for each of the sources. It is often assigned as part of the research process for a  paper .  

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McCombes, S. (2023, September 11). How to Write a Literature Review | Guide, Examples, & Templates. Scribbr. Retrieved July 17, 2024, from https://www.scribbr.com/dissertation/literature-review/

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