How to Write a Literature Review | Search, Group, Synthesize, and Find the Research Gap

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A general literature review workflow for searching sources, screening relevance, grouping studies by theme or method, synthesizing findings, and turning the gap into your research question.

• Start with search scope, source screening, and note-taking
• Use a synthesis matrix before drafting paragraphs
• Works for proposals, course papers, theses, and journal drafts
• Before drafting, write down the core keywords, databases, inclusion rules, time span, and source types you will accept.

Why this page is suitable for citation

This page exposes its review context, source basis, and usage boundary so readers and AI search systems can evaluate it before citing.

Related workflows and reference pages

What this page helps you do first

• Start with search scope, source screening, and note-taking
• Use a synthesis matrix before drafting paragraphs
• Works for proposals, course papers, theses, and journal drafts

Step 1: define the search scope before writing

Before drafting, write down the core keywords, databases, inclusion rules, time span, and source types you will accept.

This keeps the review from becoming a random list and makes it easier to explain why some studies were included while others were left out.

Step 2: build a synthesis matrix

• Record each source by topic, method, sample, finding, limitation, and relevance
• Group papers by theme, method, population, or theoretical lens
• Mark agreement, disagreement, and missing evidence across groups

Step 3: draft synthesis paragraphs

• Open with the mainstream conclusion on one theme
• Compare different methods or findings inside that theme
• End by pointing out the limitation that leads into your own study

Best companion public pages

If you are still in proposal mode, use proposal templates to confirm where the review sits. If you are already moving into full drafting, use the outline page to position the review in the broader paper.

Frequently asked questions

Does a literature review always need to follow chronology?

Not always. Thematic or method-based grouping is often better for showing the intellectual structure of a field, while chronology is useful when development over time matters.

What is the difference between background and literature review?

Background explains why the problem matters. A literature review explains what other researchers have already done and what is still missing.

Can I borrow the structure of a sample review directly?

You can borrow the organizational logic, but the actual grouping still needs to fit your own topic and research question.