Book Business KDP

Niche & book

Choosing a niche by the numbers, checking the competition and making a book people buy.

All articles 38 Getting started 12Niche & book 4Amazon Ads 7 Profit & analytics 6 Case studies 2 Tools compared 7

KDP Niche Research: How to Find a Profitable Niche

KDP niche research by the numbers: the BSR and review thresholds we use, signs of a dead niche, seasonality vsUpdated Oct 5, 2026 · 19 min read

KDP Cover Size & Requirements 2026: Spine Width, Bleed, DPI

KDP cover size and requirements in numbers: bleed, spine, 300 DPI, PDF for print and JPEG for Kindle —…Updated Sep 25, 2026 · 15 min read

Are Coloring Books Profitable on KDP in 2026? The Real Math

Are coloring books profitable on KDP? A 108-page book at $9.99 earns $3.15 in the US, while an ad sale…Updated Sep 25, 2026 · 10 min read

How to Create a Book for KDP: From Idea to Interior

How to create a book for Amazon KDP: the six-question brief, page count from royalty, title and hook,…Updated Sep 25, 2026 · 13 min read