Chat with your textbook, chapter by chapter
Revision starts with a question, not with page one. Ask yours in plain words and the answer arrives with the page attached, so you can read it in the book's own wording.
Revision questions for a textbook
During revision a textbook is a reference, not a read. You arrive holding a question — a term from a lecture, a phrase off a past paper, something you half remember — and the book offers an index and a contents page that both stop one level above where the answer actually lives. Typing the question instead gets you a short answer with the page attached, and clicking through drops you into the paragraph rather than at the top of a forty-page chapter. That last step matters more with a set textbook than with almost anything else you might upload, because in an exam you are marked against this book's definitions and this book's notation, not against somebody's paraphrase of them. Use the answer to find the passage, then learn from the passage.
Beyond finding things, the questions worth putting to a textbook are the ones you would put to a tutor if one were sitting beside you: what assumptions a model rests on, which conditions a formula holds under, what actually separates two terms that keep getting confused in your notes, what a worked example is doing between one line and the next. Answers stay tied to the chapter you uploaded, so you get how your syllabus's book handles a topic rather than how the internet generally explains it. Where your set book simply does not cover something, that silence is itself information for revision: the gap is in your source, and you can close it with a lecture or a tutorial before the exam rather than discovering it during one.
What you get, on every document
- Answers that cite the page
- Replies name the pages they came from, as chips that scroll the viewer straight there so you can read the source yourself.
- Grounded in your document
- It answers from the file you uploaded and says so plainly when your question is not covered, rather than inventing something plausible.
- PDFs up to 25 MB
- One document per chat, shown beside the conversation with real text selection — highlight a passage and ask about that exact part.
- Scans read automatically
- Pages with no selectable text are read with OCR instead, page by page, so a scanned or photographed document still works.
- Six interface languages
- English, Bangla, Spanish, Indonesian, Arabic and German — and replies come back in whichever language you ask in.
- Turn it into practice
- The same document can become practice multiple-choice questions, spaced-repetition review and mock exams once you have read it.
Other ways to read with AI
Do more with your documents
Textbooks FAQ
Can it tell me which chapter covers a topic?
Yes, and it is one of the better uses. Ask where a topic is dealt with or where a term is introduced, and you get a short answer with page references; clicking one puts you on the page, so you can see which heading it sits under and read on from there. If the book does not cover the topic at all, you are told that rather than sent to a chapter that merely sounds right.
Can it explain a figure or a diagram?
Not the picture itself. It works from the text on the page, so it can use a caption, any label that exists as text rather than as part of the image, and the paragraphs that discuss the figure — which is often where the explanation actually lives. It cannot look at the drawing, read a curve off a graph, or describe how a table is laid out. When the point depends on seeing it, use the page reference and look yourself.
Should I upload the whole textbook or just a chapter?
Upload the unit you are revising if you can. Any PDF reader will export a page range, and a chapter-sized file keeps the answers and their page references inside the material you are being examined on this term, rather than matching a similarly worded passage from a topic you finished months ago. Whole books work too, within the upload limit; a narrower one simply gives sharper answers.
Does this replace reading the textbook?
No, and treating it that way would be a mistake in an exam subject. It is a fast route into the book: ask, click the page, read the paragraph in the wording you will be marked against. Where the answer is not in the chapter you uploaded, you are told so rather than given a plausible-sounding substitute, which keeps the reading you still owe the book visible instead of hidden.
Turn a revision question into a page number
Upload the chapter you are revising and ask it what you would otherwise have asked a tutor.