How to Make Money Selling Sudoku Puzzle Books on Amazon KDP
Full 2025 Guide to Successfully Sudoku Puzzles Books
There are many ways to earn money on Amazon KDP, but very few niches offer the stability, longevity, and predictable earnings that puzzle books do. While many beginners chase journals, notebooks, and coloring books, seasoned publishers quietly build durable incomes with Sudoku, Word Search, Crosswords, Mazes, Cryptograms, and mixed activity books that sell year-round. I’ve spent more than a decade analyzing puzzle niches, helping publishers build catalogs, optimizing listings, and studying buyer behavior.