AI-generated Themed Puzzle Books on Amazon KDP
Originally published Aug 20, 2026 — Sarah (AI side hustles YouTube creator)
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One of 7 ideas covered in this video
Use free AI chatbots to generate themed puzzles (word searches, sudokus, mazes, crosswords, logic grids) for a specific niche or demographic, assemble them into a book using a free design tool, and self-publish it as a physical, print-on-demand book through Amazon's KDP platform.
Sarah's workflow spreads the puzzle generation across multiple free AI chatbots (each with separate free daily usage limits) to get an entire book's worth of puzzles in a single day, then uses what she calls a lesser-known Canva trick, uploading the AI-generated PDFs into Canva to convert them into an editable design file, to assemble and polish the finished book before uploading it to KDP. As evidence of real demand, she cites a themed puzzle book aimed at girls aged 8-12 whose Amazon sales rank, run through a third-party estimator, suggests it's selling 86-124 copies a day.
Someone who wants a very low-cost way to test print-on-demand publishing and is willing to do the legwork of finding an under-served theme or niche, since the puzzle types themselves are largely interchangeable across books.
The 86-124 copies a day figure comes from a third-party Amazon sales rank estimator, not a confirmed sales report from the book's actual author, so it's a reasonable estimate rather than verified data. The Canva PDF-to-editable-file step Sarah recommends works using Canva's free tier, though she also promotes her own Canva affiliate link for the paid version alongside it, worth knowing given her direct financial interest in that specific recommendation.