How do I change the size of my book? February 26, 2024 16:48 Updated Click "Book size" on the right side bar. You can choose from 2 book sizes, 8.5" x 11" (recommended for art books) or 8" x 8" (recommended for cards books). Related articles How can I add an image to my book? How do I Swap/Replace an Image from my Book with a different image? How do I change the cover photo? Complete Guide for Making Edits to Your Book How much do DIY books cost?