The eBook format you choose must be compatible with your computer, handheld device, or eReader operating system, and the reader software you use.

Reader Apps Compatible with iPhone®, iPad®, and iPod®touch

Adobe Digital Editions - Is a free app compatible with iPad^® that supports DRM free and Adobe eBook DRM protected PDF and ePub formats. 

Bluefire Reader App - Is a free app compatible with iPhone®, iPad®, and iPod®touch that supports PDF and ePub formats.

Reader Apps Compatible with Android

Aldiko - Is a free app compatible with the Android that supports PDF and ePub formats.

Some Computer and Handheld Based Readers By Format

ePUB and PDF - Are readable on computers and handheld devices using Adobe Digital Editions (download for free).

ePUB can also be read on several mobile reading devices (Sony Reader, B&N Nook), and using the Mozilla Firefox browser add-in ePUB reader.

Offline content may also be read using any eReader compatible device, see our eReader Hardware Guide.