Apple support page on creating ePub files. Includes a template that supports chapters. Information on adding video and images.
Create an audio file in GarageBand and add it to an ePub that you're creating in Pages.
Example Templates
Simple template with picture and text on each Page.This file does not have chapters, just text and a graphic on each page. It's a great way to begin an ePub. The final ePub would need to be exported from a MacBook.
This template has three chapters; Introduction, Vocabulary and Review Questions
Class ePub Anthology

This ePub provides directions on using the two Pages templates, "Student File" and "Classbook".
Download this ePub for directions on creating a class epub using the templates student and class book. The ePub opens in iBooks on the iPad. Open this link in Safari on the iPad and there will be an option in the upper right corner to "Open in iBooks".
Each student needs a copy of this template. They can add a picture and text for the final classbook.
Their finished work should be sent to the classroom teacher.
Each teacher needs one copy of the classbook template. The student work is copied and pasted into this classbook before publishing. Each student story will be a chapter in the final book.
U.S. States Project
Mrs. Bell, 4th grade teacher, at Black Hawk and her students are publishing their state projects in an ePub. This is the student Pages file for use on their iPad.
The states will be gathered into a regions book, so this template does not have a cover page.
Mrs. Bell's books. Each student did a state and then they were copied and pasted into one book for each region.
Fairy Tales