Cover Dimensions

BookCovers Podcast · Sep 23, 2026 · 3m

Let’s talk about cover dimensions: the detail that can turn a beautiful book cover into a frustrating upload error. If you’re preparing a book for KDP or IngramSpark, the cover isn’t just a front image. It’s a single, precisely sized print file with a front, back, and spine—and the right dimensions depend on the book you’re publishing.

First, start with the trim size. That’s the finished width and height of each page after printing and trimming, such as a common paperback size of 6 by 9 inches. But a full-wrap cover needs more than the front panel. Its width is the back cover, plus the spine…