How to publish a colouring book on KDP, IngramSpark or Lulu: low-content rules, trim, paper and bleed, single-sided pages, AI art disclosure and royalty maths.
Hardcover vs paperback for indie authors: KDP print costs, worked royalty examples, IngramSpark options and when a hardcover edition is worth adding.
Standard book sizes for novels, non-fiction and children’s books, and how trim size changes page count, print cost, hardcover and distribution options.
The maths behind the KDP cover calculator: spine width by paper type, 0.125 in bleed, worked examples for common trim sizes and a pre-upload checklist.
Step by step: age bands, the 32-page plan, trim sizes, illustration rights, bleed, KDP and IngramSpark print options, reading age and colour proofs for picture books.