About
A study guide for any book, that refuses to guess.
Litheca (from bibliothēca, library, and literature) turns any book into a complete study guide in seconds: a deep summary, characters, themes, real quotes, a comprehension quiz, and reader tools. Free, for any of the 20 million+ books in the catalogs we search.
No data beats wrong data.
Every fact on a guide is either verified against a real source or left out. Books are checked against Google Books and Open Library before a single word is generated; quotes come verbatim from Wikiquote; quiz answers are backed by quotes matched against the source text; ratings and awards we can't confirm simply don't appear. AI can still make mistakes, so tell us when it does and we fix it.
Guides are companions, not replacements
Summaries are for deciding what deserves your time, refreshing a book you read years ago, or testing yourself after finishing one. When a book is in the public domain, we go further and let you read the whole book free right here.
How it stays free
No ads and no paywall. Analytics are opt-in: on your first visit you choose “Accept all” or “Necessary only”, and nothing is tracked unless you say yes. As an Amazon Associate, Litheca earns from qualifying purchases through the "Buy on Amazon" links. That is the entire business model, and it never influences what a guide says.