Understanding EPUB 3.0

The International Digital Publishing Forum(IDPF), a global trade and standards organization for the digital publishing industry, has promoted EPUB 3.0 to a final IDPF Recommended Specification for the interchange and delivery format for eBooks and other digital publications. 

Many of the enhancements to the digital standard will have implications for digital course materials or e-textbooks, so folks in this space should be aware of this development.  Supported by HTML5, EPUB 3 adds rich media (audio, video), interactivity (JavaScript), global language support (including vertical writing), styling and layout enhancements, SVG, embedded fonts, expanded metadata facilities, MathML, and synchronization of audio with text and other enhancements for accessibility.

"EPUB has become the industry standard format for digital publications based on Web Standards that are structured, reliable, device-independent, and accessible," said Bill McCoy, Executive Director, IDPF. "As digital publications evolve from digitized text into enhanced eBooks and new forms of expression, EPUB 3 will dramatically expand the ability of authors and publishers to deliver richer experiences to their readers across disparate devices, in browsers and in apps.

You can learn more about the new format in this article published by O’reilly Media. The article is an easy read and very perceptive even for non-techies. It is a free download from O’Reilly’s website but you must register and check-out as if you were purchasing.

November ebook sales stats

The latest ebook stats are out from IDPF:

According to sales statistics compiled by the Association of American Publishers (AAP), trade eBook wholesale sales from reporting publishers were $46.6M for November 2010, a 129.8% increase over November 2009 ($20.3M), and an increase of 14.5% over the the prior month of October 2010 ($40.7M). Calendar Year to Date sales (11 months) increased 165.3% from $147.9M in 2009 to $392.4M in 2010.

Note that the usual caveats to this data apply -- specifically around the number of publishers contributing data. These numbers are typically seen as a conservative estimate.

Statistics, historical data and information about eBook sales can be viewed at: http://www.idpf.org/doc_library/industrystats.htm (NOTE: the IDPF website is being revamped and this page will not be updated until the new site is launched later this quarter).

September 2010 e-book sales statistics

E-book sales statistics for September 2010 have been released by the Association of American Publishers (AAP) via IDPF. Trade e-book sales were $39.9 million for September 2010, a 158.1% increase over September 2009. IDPF reports calendar year to date revenue is up 188%. Note: These figures represent the 12 to 15 trade book publishers who have been willing to supply their data to IDPF.

August 2010 e-book sales statistics

E-book sales statistics for August 2010 have been released by the Association of American Publishers (AAP) via IDPF. Trade e-book sales were $39 million for August 2010, a 172.4% increase over August 2009. IDPF reports calendar year to date revenue is up 193%. Note: These figures represent the 12 to 15 trade book publishers who have been willing to supply their data to IDPF.