Is my book ready to publish? A 10-point checklist for non-fiction

Run the checks in this order. The first three test the whole book, the next four test what is inside each chapter, and the last three test how chapters and the book end. Print this table and tick each check chapter by chapter.

Write the book's main idea in one sentence. Then read each chapter and ask whether it serves that sentence. A chapter that serves a different idea belongs in another book or in your cut file.

Give each concept one repeatable model or concrete image that the reader can carry from chapter to chapter. In The Anatomy of a Bestseller, our study of 47 bestselling non-fiction books, every book rated easiest to follow did this.

Length is a quick outside test. Most bestselling non-fiction runs about 70,000–125,000 words. Well below that, look for steps you skipped. Well above it, look for two books in one. To see how many printed pages your count makes, use the word count to pages calculator. Genre changes the range: see how long a non-fiction book should be.

Start chapter one with a scene or a story, not a statistic or a definition. Half the bestsellers in the study open that way, and only one opens on a number.

Then cut it. First chapters are where good books try too hard, so aim for a final version at least a fifth shorter than your first draft.

Every chapter should contain something you saw, did or got wrong. That is what turns a principle into something a reader can picture. If a chapter has none, add the moment you learned its point.

Search your draft for "over the next few years", "eventually" and "after a while". Each one may hide a turning point told in a sentence. Where it matters, slow down and show it: where you were, what was said, what changed.

Scenes also make a book easier to read, because they use short, concrete words. To see a passage's reading level, paste it into the readability checker.

Every "always", "never" and "studies show" needs a source and a limit. Name the study, then say who it was about. One claim a reader cannot check makes them doubt the rest.

More research does not fix it. Size each claim to what its source shows, and cut the claims you cannot back.

Write down the best argument against your book, in words the people who hold it would accept. Then answer it.

To find it, ask the person most likely to disagree with you for their best argument, in writing. A reader who disagrees is still reading, and one page that treats their view fairly earns more trust than another page of citations.

Replace a run of short examples with one case told in full, from decision to result. Include one that failed: a failure shows where the idea stops working, which makes the rest believable.

At the end of each chapter, come back to the scene or question it opened with. Readers notice when a chapter starts strong and then trails off.

Keep each chapter to one sitting. In most bestsellers, a typical chapter runs about 4,400–6,700 words.

Split any chapter that runs past about 9,500 words. That is more than 40 minutes of reading, too long for one sitting. See how many words go in a chapter.

In a self-help, business or faith book, end every chapter the same way: three questions, one exercise, or one rule to try this week. Give it a name and use it every time. Thinking, Fast and Slow ends its chapters with "Speaking of…", and Mindset ends them with "Grow Your Mindset". In a memoir or a history, skip this check.

Read your first and last chapters back to back. The last one should answer the question the first one asked, in a scene. If it only lists what the book said, it is not finished.

Yes, if you plan to sell the book. The checklist tells you whether the parts are there. An outside reader tells you whether they work. They catch what you are too close to see: the step you skipped, the term you never explained, the chapter that loses a stranger.

A reading score cannot tell you that. Thinking, Fast and Slow and Sapiens both read harder than most bestsellers, yet the study found both easy to follow. A formula cannot see a good explanation; a reader can.

You can skip a review for a family memoir you will not sell, a collection of blog posts, or a fifth book whose weak spots you already know.

For anything else, start with the stranger test. Give one chapter to someone who has read none of the book, and watch where they slow down or reread. Friends and family go easy on you, so pick a stranger.

Start cheap and fast, and pay for a human edit only once you know what it is for. Each step makes the next one cheaper. All five ways to get feedback are compared side by side.

1. Edit it yourself: free. Use the self-editing checklist, structure first. It is also how to edit a book for publishing before anyone else sees it.
2. The $19 Manuscript AI report: reads the whole book in one run, usually in under 10 minutes. Three of its eight questions match checks on this list: the main message, chapter openings and closings, and the reader's next step. Every chapter gets a summary, recommendations, its word count and its reading level, to set against the three numbers on this page. See a sample report on Atomic Habits.
3. Beta readers: free through swaps, or about $150 for a paid reader. A round takes weeks. See where to find beta readers.
4. An editorial assessment: an editor's letter on the whole book, $1,200–1,440 for 80,000 words.
5. A developmental edit: an editor works through structure and argument chapter by chapter, $3,200–4,000 for an 80,000-word book.

Three things waste any review: sending a first draft, choosing readers who only praise, and revising before you understand the notes. To test reader reactions without waiting weeks, an AI beta reader is planned.