Nowadays it is possible to buy books from the comfort of your own home, and have them all on one device. E-readers and e-books are gaining quite the popularity, and there are many readers on the market including the Kindle Fire and NOOK.
An article I found on Techwhirl is a short help guide to aid technical writers on creating EPUB books for E-readers.
The article goes on to say that HTML the writer should know HTML because Kindle nor EPUB can fully support the full range of HTML and CSS. The article then goes on to explain how to create an EPUB using FrameMaker or Microsoft Word, and there’s a small section on dedicated EPUB tools.
This article would be useful to any technical writer that is familiar with what EPUB is and has working knowledge of the programs mentioned, as well as the technical lingo that goes with it.
The full article can be found here: Building E-Books: A Tool Overview for Technical Writers