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.
POD, short-run digital or an offset print run? Compare costs, risks and hidden expenses, then work out your own break-even in five steps.