Google has started letting you drop ebooks you bought from Google Play Books straight into a Gemini Notebook, under a new umbrella it is calling Expert Intelligence. The announcement went up on Google’s blog on 27 August, and the practical version is simple: if you own an eligible title, you can now ask questions about that book and get answers grounded in its actual text rather than in whatever the model happens to have absorbed.
The catch is the part worth reading twice, and we will get to it below, because it is the rule that decides whether this is useful to you or just an ad for the Play Books store.
What Expert Intelligence actually does with your Google Play Books library
Google describes Expert Intelligence as “a cross Google initiative that helps you engage with your trusted sources through Google AI products.” In its first form, that means adding a purchased ebook to a notebook as a source, alongside anything else you would normally put in there — your own documents, notes, PDFs, photos.
Once a book is in, Gemini Notebook treats it the way it treats any other source. You can ask questions and get responses cited back to the book. You can also generate the notebook’s usual output formats from it — Google names Infographics, Audio Overviews and Quizzes specifically.
The examples Google uses are all mixing-your-own-material cases, and that is the genuinely interesting bit: a book plus your journal entries, or a book plus a photo of what is in your fridge, in one notebook. The book stops being a thing you read cover to cover and becomes a reference layer over your own stuff.
At launch Google says the catalogue covers more than 100,000 books from publishers including Bloomsbury, De Gruyter Brill, Johns Hopkins University Press, Macmillan Publishers, O’Reilly Media and Penguin Random House. More than 15 authors — Steven Pinker, Michael Pollan and Jennifer Wallace among them — worked with Google on curated “Featured Notebooks” built around their own books.
You have to own the book, and sharing a notebook does not share it
Here is the rule that matters most, in Google’s own words:
“we’ve ensured that for people to interact with a book in Gemini Notebook, they must own the book through Google Play Books. If a notebook is shared, other collaborators will be prompted to purchase their own copy to engage with the content further. Otherwise, the book will be unavailable within their notebook.”
— Google, in its Expert Intelligence announcement
Read that as a consumer rather than as a press release and two things fall out. The good one: this is the opposite of the usual arrangement where a model has quietly eaten an author’s work and gives it back to anyone who asks. Publishers agreed to this because ownership is enforced per person, and authors get paid per copy the way they always did.
The less good one: your notebook is now only as portable as your Play Books receipts. If you build a research notebook around three purchased titles and share it with a colleague, they see a notebook with three holes in it and a prompt to go buy the books. A Kindle library, a library loan, or a paper copy on your shelf buys you nothing here. In practice Expert Intelligence is a reason to buy your next ebook from Google rather than from Amazon, and it is fair to call that what it is.
How to check whether a book qualifies
Google’s instruction is to open the title in Google Play Books and look at its detail page. “If eligible, you’ll see Gemini Notebook listed when you click the ‘Tools’ badge on a book’s detail page.” Not every title in your library will show it — the 100,000-book figure is a small slice of the Play Books catalogue, and it is publisher-by-publisher.
Google is also running a launch promo, but it is narrow: one free ebook from eligible titles, applied at checkout with the code EXPERTINTELLIGENCE, “open to participants with US-based Google accounts who receive the promotional code,” while supplies last. Age restrictions apply and it cannot be combined with other offers. Google’s post does not give a rollout schedule or a country list for the feature itself beyond that US-only promo, so if you are outside the US, the promo is not for you even if the feature is.
Where this is heading
Google is explicit that books are the starting point rather than the point. It says it plans to extend Expert Intelligence-enabled content to “the Gemini app and AI Mode in Search”, and lists third-party subscriptions, business research reports and textbooks as source types it wants to add.
That last line is the one to watch. Paid subscriptions and textbooks as verified, ownership-gated sources inside AI Mode in Search would be a meaningfully different product from a chatbot that scraped the open web — and a meaningfully different bill, too, depending on how much of your reading ends up living behind a Google purchase.
