Find that feeling again.
Tell ChatGPT what stayed with you. Discover used books from our shop that could be your next great read.
The video shows a U.S. example recorded November 6, 2026. Prices and availability can change; shipping and taxes are extra.
- Real used books
- Your reading tastes
- Prices and conditions
- Checkout in our shop
A book recommendation with a next step
From “what should I read?” to “that looks like me.”
You remember the atmosphere. The characters. The way you kept turning pages. Start there.
Book Finder helps ChatGPT explore our catalog and show books you can take a closer look at.
A reading request to try“I loved Where the Crawdads Sing. Find something with that same atmosphere and mystery, under USD $15. I’m shopping in the United States.”
From conversation to bookshelf
Your next chapter, in three steps.
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Install Book Finder
Open the plugin listing in ChatGPT and select Install plugin, then Try in chat.
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Tell it what you love
Start with a favorite book, a mood, a subject or a budget. Tell it your shopping country.
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Choose your next read
Compare suggestions. Open your chosen copy in our shop to review its details and complete your purchase.
Screenshots show the recorded Canadian demo from November 5, 2026. Prices and availability may have changed.
Keep the conversation going
Close, but not quite? Say what you would change.
More mystery. Less romance. A different setting. Your first suggestions can be the beginning of a better conversation.
- Use a favorite book as your starting point.
- Share your language, length and budget.
- See the available details before you choose.
A little clarity
Before your next chapter.
Why use Book Finder with ChatGPT?
ChatGPT helps you put your reading tastes into words. Book Finder connects the conversation to Sustainable Books listings, with covers, authors, prices, conditions and shop links. Page count, language and other details appear when available. It searches our catalog, rather than every book or bookseller.
Do I need a Sustainable Books account?
You do not need a Sustainable Books account to look up books. You use your ChatGPT account to access the plugin. Shopping and payment take place in our store.
Can I ask for different suggestions?
Yes. Tell ChatGPT what to change: more mystery, a different setting, a shorter read, a different language or a budget. Tell it whether you are shopping in Canada or the United States so it can request the relevant prices.
Are these real books I can buy?
Recommendations come from our used-book catalog. A recommendation does not reserve a copy. Condition and notes apply to the selected copy; a cover may represent the edition rather than that individual copy. Prices and availability can change. Review the product page and checkout total, including delivery and taxes, before paying.
Can you choose a mystery box for me?
The optional Custom Mystery Box lets us choose a selection using your reading request. Your request is prefilled in the shop for you to review or edit. Choose a size and check its separate price before adding it to your cart. The video’s USD $55 starting price is a U.S. example; a box can exceed your individual-book budget. Specific titles are not guaranteed.
What should I know about AI recommendations?
ChatGPT’s explanations may be mistaken, and our catalog may not describe every theme or content concern. Ask about uncertain details. Book Finder is intended for a general audience and excludes books identified as mature or sexually explicit; a recommendation is not an individual age rating.
Read the video transcript
Looking for something to read? Finished a book you loved? Find that feeling again. Meet Book Finder from Sustainable Books.
In ChatGPT, open Plugins and search Sustainable Books. Choose Book Finder, then Install plugin and Try in chat. Tell it what you loved about your last book. Add your budget and shopping country.
Here, we're asking for the atmosphere and mystery of Where the Crawdads Sing. Our budget is fifteen U.S. dollars per book. Book Finder searches our available used-book catalog. Compare real covers, prices, condition, and reasons each book might fit.
Want more mystery and less romance? Just ask, and keep the same budget. The recommendations change with your preferences. See one you like? Open that exact copy in our shop. Check its price, condition, shipping, and taxes before buying. Prices and availability can change.
Prefer a surprise? Explore a separately priced Custom Mystery Box, with your reading preferences ready to review. Install Book Finder: Sustainable Books. Tell it what you loved.
Your next chapter starts here
There’s another book you won’t want to put down.
Add Book Finder to ChatGPT. Tell it what you love. See where the conversation takes you.