What do you need?
- A finished, proofread story with a picture for each spread.
- A KDP account at kdp.amazon.com (free), with your tax and payment details.
- Two PDF files: the interior (the pages) and the cover (back, spine and front in one image).
- A title, a short description, keywords and categories for the listing.
Amazon’s rules change from time to time. Check each step against KDP’s own help pages when you publish.