Why turn an EPUB into flashcards
You're reading a technical manual, a course book, a university essay, or an exam-prep book: 300, 500, 800 pages. Reading is easy, but retaining a whole book is very hard without a tool. Most readers forget 70% of a book's content within weeks.
Flashcards solve this by turning the book into a deck with smart spacing. You can consolidate what you read and make reading a durable investment, not a long forgotten view.
Auto-split by chapter
Diane uses the EPUB's table of contents to split the book. You get one sub-deck per chapter plus a global book deck. This structure enables several strategies: chapter-by-chapter while reading, or full review after finishing.
For each chapter, Diane identifies central concepts, definitions, important figures, notable quotes. Flashcard format adapts to content type (Q&A, cloze, attribute-this-quote, etc.).
Academic textbooks specifically
For a law, medicine, economics or science textbook, Diane prioritizes definitions, theorems or principles, classifications, examples. You get a dense deck of memorizable concepts, perfect for exam prep.
Internal bibliographic references in the textbook are also extracted when they matter (cited authors, foundational papers).
Essays and literature specifically
For a university essay, AI highlights the author's thesis, main arguments, examples and counter-arguments. For a novel studied in literature class, flashcards can cover characters, themes, key passages worth citing in essays.
Format compatibility
Diane reads standard EPUB (EPUB 2 and EPUB 3). For Kindle files (.azw, .mobi), convert to EPUB with a tool like Calibre before loading. DRM-protected books can't be processed.
Use cases
Students: convert a required course book into a study deck, exploit a digital textbook. Serious readers: actually retain what you read in essays or technical books. Exam prep: digest a bibliography into flashcards.