Validating a Nonfiction Book Topic
Finding and validating a specific, non-saturated non-fiction book topic on Amazon before writing it with Claude
Video published Sep 1, 2026 by Ken Fornari
Startup cost: Low (Amazon KDP publishing is free; a book-research/BSR-checking tool for validation) (our estimate; the video doesn’t give figures)
Source video
Ken Fornari · Using Claude to Create & Sell eBooks Online Is the Best AI Side Hustle in 2026 ↗
What It Is
Deliberately skip low-content books (journals, planners, coloring books, puzzle books) as oversaturated and dominated by big brands, and instead target specific, narrow non-fiction topics that solve one specific problem for one specific reader (e.g. 'emotional regulation for teens,' not generic 'diet book'); find topic candidates by browsing Amazon's bestseller categories and noting specific, narrow, well-performing books, then validate real demand using a research tool; create the book title first (since it defines competitive positioning), then have Claude build a chapter-by-chapter outline and draft each chapter, guided by your own prompting rather than a single one-shot prompt.
The Pitch
The presenter, who has sold over 40,000 books/ebooks/audiobooks on Amazon and Audible for multiple six figures and still earns thousands monthly, argues Amazon KDP beats other digital products specifically because Amazon already has active buyers searching for solutions, meaning you don't need heavy paid-advertising expertise; he's explicit this isn't instant or 'free money' and requires real strategy on both topic-selection and creation.
Who It’s Best For
Someone willing to do real topic research before writing, and comfortable guiding Claude through a structured multi-step writing process rather than expecting a single prompt to produce a finished book.
The Truth (as we see it)
Amazon KDP's royalty/fulfillment structure and the strategic distinction between saturated low-content books and narrower non-fiction niches are accurate and reflect genuine, experienced self-publishing practice, and the presenter's stated volume (40,000+ books sold) lends real credibility beyond a typical one-off claim.
Our assessment, based on the video and what’s typical across similar videos. We don’t independently verify income claims or prices.
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