Google is adding purchased books as sources in Gemini Notebook. A new feature called Expert Intelligence lets readers bring supported Google Play Books into the note-taking app, ask questions about their contents, and create plans, infographics, or AI-generated audio discussions.

The integration will launch with more than 100,000 books from publishers including Penguin Random House, Johns Hopkins University Press, Macmillan, and O’Reilly Media. Eligible titles will display “Gemini Notebook” under a Tools badge in Google Play Books, and users can view the full text inside Notebook.

Google demonstrated the tool generating a recipe book from Michael Pollan’s Food Rules and applying ideas from Kim Scott’s Radical Candor to a workplace conversation. Fifteen authors have also prepared Featured Notebooks with extra source material and introductions.

Access is limited to supported books rather than a user’s entire library. The feature makes a legally purchased text usable as a structured AI reference, but generated answers can still misread or oversimplify an author’s argument. Readers should return to the cited book for consequential details instead of treating an AI response as a replacement for the source.