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Turn your literature review sources into a concept map

Upload the papers and notes you have already gathered. DeckOwl reads them and builds an editable, explorable mind map of the themes, methods, and findings that connect them.

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Why a concept map helps with a literature review

Grouping twenty papers by theme is the hard part of a literature review, and a concept map for a literature review makes that grouping visible. Instead of rereading each source to remember who said what, you can see how the ideas branch and where they meet.

Start with one central question so every branch has a clear reason to exist.
Group sources by claim or method rather than by publication year to surface real patterns.
Mark disagreements between studies as their own branch so your synthesis addresses them directly.
Review the map before drafting the synthesis section to confirm no theme is missing.

Example literature review concept map branches

Research questionScope of sources · Inclusion criteria · Time period covered

Theoretical frameworkKey constructs · Competing models · Where the framework was first applied

Methodological approachesSample sizes · Data collection methods · Quality appraisal tools

Points of agreementConsistently replicated findings · Shared definitions · Common limitations

Gaps in the evidenceUnderstudied populations · Missing longitudinal data · Unresolved contradictions

Generate the full set

Themes at a glance

See the main ideas from every source arranged as branches, so overlapping arguments stand out before you start writing.

Editable branches

Rename, move, or add nodes as your framing changes. The map follows your reading instead of locking in a first draft.

Explore by click

Expand any branch to reach the supporting claims and source notes behind it, then collapse it again to keep the big picture in view.

How it works

Upload your sources

Add PDFs, DOCX files, PPTX slides, plain text notes, or photos of printed pages.

Generate the map

DeckOwl pulls out the central question, key themes, methods, and findings, then arranges them as a mind map.

Refine and explore

Edit the branches to match your argument, then move through the map to spot agreements, conflicts, and gaps.

A useful map puts your research question at the center, then places theoretical frameworks, methods, and findings on separate branches. Sources that share a concept sit near each other, so contradictions and under-studied areas become easier to spot.

Because the map is editable, it can change as your argument sharpens. Start broad with the sources you have, then rebuild branches as you decide which themes will carry your review.

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Frequently asked questions

How many branches should a literature review concept map have?

Most reviews work well with four to seven main branches, such as research questions, frameworks, methods, findings, and gaps. If a branch holds more than a handful of sources, split it into sub-themes.

Where should I put conflicting findings in the map?

Give contested results their own branch and list the studies on each side as sub-points. This keeps the disagreement visible so your synthesis can explain it rather than smooth it over.

Can I edit the map after DeckOwl generates it?

Yes. Every branch and node can be renamed, moved, or removed, so the map can follow your argument as it develops.

Are exports included in the free plan?

The free plan includes 3 generations per month and lets you study in the browser. Exports such as PDF and DOCX are part of the Plus plan at $39/year or $7.99/month.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.