Write short, useful ebooks for one specific audience fast, and sell them on your own store. Speed lets you test many niches cheaply.
The short playbook
- Find one painful, specific question people search for.
- Outline with AI, draft with AI, then edit heavily. The editing is the product.
- Design a clean cover, price at $9–27, sell on Gumroad.
- Drive traffic with short-form content answering slices of the ebook's question.
Tool stack
The writing partnerdrafts chapters with you and rewrites them until they read like you
Free plan · from $17/moLong books need a partner that can hold the whole manuscript, and Claude works through full chapters and rewrites without losing the thread. Pro is $20 a month, or $17 a month billed annually at $200 a year. Chats can be used for model training unless you switch that off in account settings.
Free plan · $20/moA good second seat for outlines, research summaries, and back-cover copy when you want a different read on a chapter. Plus is $20 a month and the free plan is enough to test the whole workflow before paying anything.
The covermakes a cover that looks bought, not homemade
Free plan · Pro $15/moBook cover templates already sized for KDP plus a real image editor, so you get a clean cover without hiring a designer. The free plan covers a basic ebook cover, and Pro is $14.99 a month or $119.99 a year. The free Pro trial converts to a paid subscription when it ends.
Free / Plus $149/yrBuilt only for authors, so the cover templates, 3D mockups, and ad images already match how selling books actually look. The free plan has limited downloads and the Plus plan is $149 a year.
The book fileturns the manuscript into the epub and print pdf that stores accept
$147 one-timeFormats the same manuscript into a store-ready epub and a print PDF, and it runs in the browser on any computer. It is a $147 one-time purchase with all future updates included, no subscription.
$199.99 one-timeThe polish standard for self-published interiors, and you can lay out the entire book free and pay only when you export. Vellum Ebooks is $199.99 one time and Vellum Press, which adds print output, is $249.99. It only runs on Mac.
FreeA free formatter that exports an epub compatible with all major stores and a print-ready PDF, which makes it the zero-cost way to ship book one. Core writing and formatting features are free, with optional premium plans at $4.99 to $7.99 a month.
The storefrontwhere the book goes on sale, and how you pick a niche that sells
Free to publishThe readers are already here and publishing costs nothing up front. Ebooks priced $2.99 to $12.99 earn a 70% royalty minus delivery costs averaging $0.06 a copy (Amazon widened that band from $9.99 on July 7, 2026), and 35% outside that range. KDP requires you to disclose AI-generated text, images, or translations when you publish; AI-assisted work, where you wrote the text yourself and used AI to edit, refine, or brainstorm, does not need disclosure.
$199 one-timeShows the actual Amazon search terms, categories, and competing books before you write a word, which is how you pick a niche instead of guessing. It is $199 one time with a 30-day money-back guarantee.
Common questions
How do you publish an ebook?
Write the book, format it into a clean ebook file, add a cover, then upload it to Amazon KDP and set your price. The playbook above walks through each step, and there is no fee to publish: KDP pays you a royalty on every copy sold. You can do the whole thing for $0 using free ChatGPT to draft, free Reedsy Studio to format, and free KDP to publish.
Do you have to disclose that your ebook was written with AI?
It depends on who did the writing. KDP requires you to disclose AI-generated content, meaning text an AI tool created, even if you edited it heavily afterward. But AI-assisted work, where you wrote it yourself and used AI to edit, refine, or error-check it, does not need to be disclosed. Amazon spells out that difference in its content guidelines.
How much money can you make selling ebooks?
On a book priced between $2.99 and $12.99, KDP pays a 70% royalty minus a small delivery fee, so a $4.99 ebook nets you roughly $3 a copy. Outside that price band the rate drops to 35%. The honest part: most self-published ebooks sell only a handful of copies, and what you earn depends entirely on picking a niche people search for and stacking up more titles over time.
How much does it cost to start writing ebooks with AI?
You can start for $0. Free ChatGPT drafts the book, free Reedsy Studio formats it, and Amazon KDP charges nothing to publish. The tool stack above lists paid upgrades like Claude ($20/mo) for writing or Publisher Rocket ($199 one-time) for finding a niche, but none of them are required to get your first book live.
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Income and demand tiers reflect what we found in public reports and search data, verified to the level shown. Nothing here is a guarantee of earnings.