Guides for authors
Translating, formatting, publishing: what you need to know, checked against the official sources.
How many words are in a novel?
Average word counts for novels and novellas by genre, with page counts and translation and layout costs for each length.
How much does it cost to translate a book?
Human, AI-only and AI-plus-review prices per word and per novel, with sources, for an 80,000-word book.
Do you have to disclose AI on KDP for a translation?
When an AI-made translation must be disclosed on KDP, when it need not, and the hybrid case, with caution.
KDP trim sizes and margins explained
5 x 8, 5.5 x 8.5, 6 x 9: KDP's page limits per trim size, minimum margins, bleed and spine width, with sources.
Kindle Translate: what authors need to know
What Amazon's free AI translation covers (ebooks, six languages, visible label) and what it leaves out.
How to publish a translated book on KDP
Language, ISBN, pricing, paperback and ebook: the checklist from translation to live listing.