How to Write a Literature Review for Your Thesis: A Step-by-Step Guide

The literature review is often the chapter students find hardest to start and hardest to finish. It is not a list of everything you have read. It is an argument, built from published research, that explains what is already known about your topic, where the gaps are and why your study is needed. This guide walks you through the process step by step, whether you are writing a Bachelor’s thesis, a Master’s dissertation or a PhD.

1. Define the scope of your review

Start with your research question or aim. Write it at the top of a blank page and list the key concepts it contains. For a question such as “How does remote work affect employee engagement in Swedish SMEs?”, the concepts are remote work, employee engagement and small and medium-sized enterprises. These concepts become the backbone of your search and, later, of your chapter.

Decide on boundaries early: which years, which countries, which types of study and which disciplines you will include. A Bachelor’s thesis might focus on the last ten years of peer-reviewed studies. A PhD review usually needs to go further back to cover foundational theory.

2. Search the literature systematically

Use the academic databases your library provides rather than relying on Google alone. Useful starting points include:

• Scopus and Web of Science for broad, high-quality coverage
• Business Source Complete for management, marketing and finance
• PsycINFO for psychology and behavioural research
• ERIC for education
• Google Scholar for a quick overview and for finding who has cited a key paper

Combine your concepts with Boolean operators, for example ("remote work" OR telework*) AND ("employee engagement" OR "work engagement"). Keep a simple log of the databases, search strings, dates and number of results. Examiners appreciate a transparent search, and for a systematic review it is required.

3. Manage your sources

Install a reference manager such as Zotero, Mendeley or EndNote before you collect your first article. It stores PDFs, generates citations in APA, Harvard or any other style and saves you days of work at the end. Create folders or tags that match the themes you expect to write about.

4. Read critically and take structured notes

You do not need to read every paper from start to finish. Read the abstract, introduction and conclusion first, then decide whether the full paper is relevant. For the papers you keep, record the same information every time in a synthesis matrix: a simple table with one row per study and columns such as:

• Author and year
• Aim and research question
• Theory or framework
• Method, sample and context
• Key findings
• Limitations and your critical comments

The matrix makes patterns visible. You will quickly see which findings agree, which conflict and which contexts have barely been studied.

5. Choose a structure

Most literature reviews are organised in one of these ways:

• Thematic: sections built around the key concepts or debates. This is the most common and usually the strongest structure.
• Chronological: how understanding of the topic developed over time. Useful when the history of a debate matters.
• Methodological: grouping studies by the methods they use, which helps when methods explain differences in findings.
• Theoretical: comparing the theories used to explain the phenomenon.

Whatever you choose, open the chapter with a short introduction that explains its purpose and structure, and close it with a summary that leads directly to your research questions or hypotheses.

6. Synthesise, do not summarise

The most common weakness in literature reviews is a sequence of summaries: “Smith (2019) found… Jones (2021) found…”. Instead, write about ideas and use the studies as evidence. Compare the two examples below.

Summary: Smith (2019) found that remote work increased engagement. Lee (2021) found that it reduced engagement.

Synthesis: Evidence on remote work and engagement is mixed. Studies of knowledge workers with high autonomy report gains (Smith, 2019), whereas studies in roles that depend on team collaboration report declines (Lee, 2021), suggesting that job design may moderate the relationship.

The synthesis version groups studies, explains why they differ and points towards a research opportunity. That is what examiners look for.

7. Identify your research gap

A gap is something the literature has not yet answered convincingly. Typical gaps include an under-studied context (for example, a Nordic country or a specific industry), a population that has been overlooked, conflicting findings that need explaining, or a method that has not yet been applied. State the gap clearly, show the evidence for it and explain how your study addresses it.

8. Write, then revise

Write a rough first draft quickly, section by section, using your matrix. Then revise with these questions in mind:

• Does every paragraph start with a clear topic sentence that makes a point?
• Have I compared and evaluated studies rather than describing them one by one?
• Are my most important claims supported by recent, peer-reviewed sources?
• Does the chapter end by leading logically to my research questions?
• Are all citations and references formatted consistently?

Common mistakes to avoid

• Relying on textbooks, websites or very old sources for key arguments
• Including studies that are only loosely related to your question
• Quoting at length instead of paraphrasing and citing
• Ignoring studies that contradict your expectations
• Leaving the gap implicit instead of stating it

If you would like feedback on your literature review structure, your search strategy or a full draft, our research support and academic editing specialists can help.