How to make an ebook with free tools

The free "A beginner's guide to ebook development for e-Learning" (by Scripture Union Queensland, 2011) has been released as part of a government funded Flexible Learning Framework Innovations Project. This describes how to produce e-books inEPub and HTML 5 formats for mobile devices, Calibre and Sigil.

This is a useful guide, but producing educational content this way is still more difficult than it need be. As I have noted when preparing my ICT Sustainability course notes, the e-learning formats, such as IMS Content packages are very similar to e-book formats. It should be possible to create free open source conversion tools for converting between Moodle books, IMS Content Packages and EPub e-books.

ps: It is odd a report on how to make an e-book has been published only in PDF format, not in the EPUB format being advocated for use.