The 2026 Blueprint for Amazon KDP Puzzle Books: Why 99% of Publishers Are Failing (And How to Win)
Let’s be brutally honest for a second: the “gold rush” of slapping a few generic Sudoku grids into a PDF and calling it a business is dead. If you’re still following the KDP advice from 2021, you aren’t just behind the curve—you’re falling off a cliff. According to recent industry data from late 2025, over 87%…
