I gave a talk at Open Source Bridge in June, 2011, in Portland, OR called EPUB: What, Why, and How. On this page, you’ll find some more links and resources.
The presentation, in EPUB format: epub_wwh.epub
The presentation, in HTML format: (coming soon)
The source files for the presentation: https://github.com/jlapier/epub_what_why_how
A “Choose Your Path” kind of story, for fun and demonstration: fsck_story.epub
Fork the story source and help write it: https://github.com/jlapier/fsck-story
A real, complete novel (excerpt and full novel available in EPUB format): Unexpected Rain