eBook - ePUB 2.0
ePublisher can deliver content to your mobile users and eReader platforms with the IDPF ePUB 2.0 eBook standard. This format makes sense for long form content or reference materials which are not suitable for web delivery. eBooks enable users to access content offline, track their reading progress, and otherwise enjoy the benefits of traditional press books.
Keep in mind that eBooks primarily focus on readability. Therefore, eBooks lack support for content-sensitive help, JavaScript, and complex layouts. Tables are supported by the standard, yet you should carefully review the use of tables given the rendering limitations of current eReader platforms.
Consider using this format when delivering content to eReader devices, such as the Apple iPad.