How to write an ebook: 8 steps from idea to file

What should your ebook be about?

One problem, for one reader, that you have solved yourself. That is the whole test.

The common mistake is a topic that is really a library. "Social media marketing" is a shelf of books. "Writing your first ten Instagram captions for a candle shop" is one book, and it is the one somebody pays for, because they can see themselves in the title.

If you are still choosing the reader, finding a niche for digital products has five tests for it. If you want to know which formats tend to sell, what digital products sell best covers that. This post assumes you know who it is for and walks through the writing.

How do you write an ebook, step by step?

1. Pick the reader and the problem

Write it as one sentence: "For [who], who [problem]." Pin it above your draft. Every chapter that does not serve that sentence goes in a different book.

2. Write the promise

The promise is what the reader has when they finish. "You will have a priced, listed product page" is a promise. "Everything about selling online" gives the reader nothing to check at the end. Your working title comes from the promise, and you can polish it later.

3. Outline the chapters as steps

List what the reader has to do, in the order they do it, from where they are now to the promise. Each step becomes a chapter. If a chapter is not a step, ask whether it belongs in an appendix or nowhere.

4. Draft the whole thing in plain text

Write fast and badly from start to finish before you improve anything. Use a plain text editor or Markdown, where there is no page to design and nothing to fiddle with. A finished rough draft is worth more than three perfect chapters, because only a finished draft shows you what is missing.

5. Add a worked example to every chapter

The reader could have found the theory for free. What they pay for is the example: the filled-in template, the before and after, the actual numbers from your own work if you have them. If you do not have a real example for a chapter, that chapter may not be yours to write yet.

6. Edit in three passes

Big to small, in this order:

1. Structure. Are the chapters in the order the reader needs them? Does any chapter repeat another?
2. Cuts. Remove every paragraph that does not move the reader toward the promise. This pass is usually the biggest.
3. Sentences. Short sentences, plain words, one idea per paragraph. Read it aloud and fix every line you stumble on.

7. Test it with one real reader

Find one person who has the problem and has not solved it. Ask them to use the book, not read it, and tell you where they got stuck. Their sticking points are your next edit.

8. Format and export

Only now. Fonts, margins, page breaks, cover, and the choice between PDF and EPUB. How to format an ebook covers all of it in seven steps.

How long should an ebook be?

Long enough to deliver the promise. There is no correct page count, and readers do not pay by the page. A short guide that solves one problem cleanly is easier to finish, easier to describe on a sales page and easier to buy.

If yours keeps growing, it is usually two books. Split it. The smaller one can become a free sample, and how to create a lead magnet covers turning one chapter into the thing that builds your email list.

Can you use AI to write an ebook?

For parts of the work, yes. It is good at turning your notes into a first draft, suggesting an outline you then reorder, and catching repetition during the edit. It is poor at the parts that make a book worth paying for: your examples, the order you learned things in, and the judgement about what to leave out.

The way I would use it is in step 4 and step 6, never in step 1 or step 5. How to use AI to create digital products has the full workflow and the rules platforms set on AI-made work.

What do you do after the ebook is written?

Three things before it goes on sale:

• Price it against the problem it solves. How to price a digital product explains how.
• Choose where to sell it. Your own link, a marketplace or an ebook store each suit a different book. Where to sell digital products compares them, and selling on Gumroad is a common place to start.
• Write the sales page from the promise and the reader sentence you wrote in steps 1 and 2. The sales page guide walks through it section by section.

Then launch it to the people who helped you test it first. They already know it works.

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bukpress, if formatting is where the book stalls

A note on fit first. If your ebook already looks fine as a document export, ship it and move on: you do not need another tool. bukpress does not write the book, and it will not make an unwanted book sell.

bukpress takes the plain text draft from step 4 and turns it into a typeset PDF and a reflowable EPUB: a live paginated preview, your own fonts and covers, a design you save once and reuse, and three dashes on a line for a page break. There is a free plan with no watermark, so you can run your real manuscript through it before deciding anything.

Try bukpress