There are a variety of e-book types and plenty of file formats to deal with, and then there are different kinds of books (novels, comics, etc.) that make the whole experience a little complicated.

Amazon's Kindle readers support a variety of e-book formats, including MOBI, AZW, KF8/AZW3 and PRC. MOBI came from Mobipocket, which Amazon acquired in 2005, and files may use the MOBI or PRC ...

Provide accessible multimedia in e-books. Most e-book formats can accommodate multimedia in some manner, either by embedding the elements directly into the e-book, or by linking to them externally.

it took a decade to gain real traction due to the many different e-book formats on the market. In addition, until the E Ink electronic paper technology was used for the display, battery life was a ...