Guides

How to write an ebook with AI, step by step

By the create-ebook team · Updated 2026-09-13

AI can write an ebook in minutes. Whether anyone finishes reading it depends on how it was written. Books generated in one shot repeat themselves by chapter four and pad every section with “in this chapter we will”. Here is the method that avoids both, whether you use create-ebook or run it by hand.

Step 1: write the brief, not the book

Before a single chapter, get the plan right: who the reader is, what they can do at the end, what your angle is, and a table of contents where every chapter has a distinct job. Spend your effort here. A good brief produces a good book with almost any model; a vague one produces mush with the best.

Step 2: one chapter at a time, with memory

Generate chapter one. Summarise it: what it said, which points it made. Generate chapter two with the brief, the full table of contents, the summary of chapter one and an explicit “already covered, do not repeat” list. Repeat for every chapter. This rolling memory is what keeps a 15,000-word book coherent; create-ebook does it automatically.

Step 3: check every chapter before moving on

Word count in range, no reused headings, no filler phrases, required elements present (exercises in a workbook, a hook at the end of a fiction chapter). Then a second read against a rubric: specific, actionable, no repetition, native language, on brief. Below the bar, rewrite with the reasons. Doing this per chapter is cheap; doing it on a finished book is a rewrite.

Step 4: make it yours

Now read it as the author. Add the story that proves chapter three, the number you always cite, the mistake you made in year one. Cut what you would not say. This pass is where the book stops being generic, and it takes an afternoon rather than a month.

Step 5: cover, files, disclosure

A cover with a painted background and a typeset title (never let the image model draw letters), an EPUB for Kindle, a PDF for direct sales, a DOCX for your editor. On KDP, disclose AI-generated text and images with the checkbox; buyers do not see it.

Frequently asked questions

Which AI model is best for writing ebooks?

Less important than the method. The same model produces a repetitive book in one shot and a coherent one chapter by chapter with memory and review.

How long should an AI-written ebook be?

As long as the topic needs: 4,000 to 6,000 words for a lead magnet, 10,000 to 20,000 for a guide, up to 30,000 for a novella. Length without substance shows.

Can I do this by hand in ChatGPT?

Yes, with discipline: keep the brief in every prompt, paste summaries back in, maintain the covered list, and check each chapter. It is a few hours of prompt management per book.

Is it legal to sell an AI-written ebook?

Yes. Disclose it where the platform asks (Amazon KDP does) and make sure the content does not infringe anyone’s rights.