This document provides delivery information for all accepted media and files for Apple Books. It describes the basics of EPUB 3 creation, and provides guidelines for various EPUB styles and features.
In addition to this guide, two example EPUB files are available for your reference in the “Preparing Your Books” section of the Apple Books Guides page:
Flowing book example: Apple Books EPUB Example
Fixed-layout book example: Apple Books Fixed-Layout EPUB Example
Note: Apple Books Asset Guide 5.3 and later cover EPUB 3 files only. For EPUB 2 information, refer to the Internet Archive EPUB 2 page.