Did they stop? I know they stopped selling their books directly, but I'm pretty sure their stuff has been DRM free on places like Kobo the entire time.
Listed is "HTML & XHTML: The Definitive Guide (6th ed.)" by Chuck Musciano and Bill Kennedy from 2006.
However there was a 7th edition, ISBN 9781449302597, published 2011. Yet nowhere online can I find a copy to purchase. Does anyone have a clue what happened to the 7th edition or where it might be found?
It never came out. Its page on their website can be tracked through time with the publication date slipping repeatedly. The canceled 7th edition’s author went on to update CSS: The Definitive Guide alongside Eric Meyer.
I’m partway through writing a proposal to O’Reilly to do an updated edition. :-)