"ePub 3 has been widely adopted as the format for digital books (eBooks), and these new specifications significantly increase the format's capabilities in order to better support a wider range of publication requirements, including complex layouts, rich media and interactivity, and global typography features. The expectation is that ePub 3 will be utilized for a broad range of content, including books, magazines and educational, professional and scientific publications."
"ePub 3, the third major release of the standard, consists of a set of four specifications, each defining an important component of an overall EPUB Publication:
- EPUB Publications 3.0 [Publications30], which defines publication-level semantics and overarching conformance requirements for EPUB Publications.
- EPUB Content Documents 3.0 [ContentDocs30], which defines profiles of XHTML, SVG and CSS for use in the context of EPUB Publications.
- EPUB Open Container Format (OCF) 3.0 [OCF3], which defines a file format and processing model for encapsulating a set of related resources into a single-file (ZIP) EPUB Container.
- EPUB Media Overlays 3.0 [MediaOverlays30], which defines a format and a processing model for synchronization of text and audio."
For full Documentation please visit http://idpf.org/epub/30/spec/epub30-overview-20110523.html
