# Summarize a book

> Get a one-page summary or chapter-by-chapter notes from a book's own text, and see what each one costs.

Summaries are written from the book's text, read from its EPUB or PDF through Calibre.

## Before you start

- Calibre's Content Server is on.
- Model Hub has a provider.

## A one-page summary

1. Open the book's note.
2. Select **Summarize** on the Book tab of the Library panel, or run **This book: Summarize (one page)**.
3. The summary starts at once. Its row in the panel shows what it is doing, what it has cost so far, and a **Cancel** button.

A one-page summary of one book usually costs a few cents. A book too long for the model is digested chapter by chapter first, then summarized.

To do a whole shelf, open the shelf and run **Shelves: Summarize the books on this shelf**. This one shows an estimate first: how many books, about how much text, and the cost. Nothing is spent until you confirm.

## Chapter notes

Choose **Write chapter notes** from the **More** menu on the Library panel's Book tab (**This book: Write chapter notes**). You see an estimate first and confirm. Each chapter gets its own notes. A quote is kept only when it is found word for word in the book.

## What to know

- A summary of one book starts without an estimate. A shelf's summaries and chapter notes show one first.
- You can cancel a running summary from its row in the panel.
- A call billed well above its listed price stops the run.
- Undo puts an earlier summary back.

## Related

- [Privacy and costs](privacy-and-costs.md)
- [Packs](packs.md)

## An offer on a new book

The first time you open a book note that has no summary, a banner under the title offers one. **Summarize** starts the summary at once, and the Library panel shows its progress, its cost and **Cancel**; **Not now** closes it for that book; **Don't ask again** turns the offer off (turn it back on in **Settings → Library Hub → Notes → Summaries**). The Library panel's **Book** tab has a **Summarize** button for any book without a summary. A banner needs Model Hub.