The eZ publish 3 documentation can be found here:
http://ez.no/manual
(see the various installation documents, aming other things)
http://ez.no/sdk (this contains reference documents, and several tutorials for common issues)
This document is recommended for beginners: http://ez.no/manual/about/definitions
I would like to echo a recommendation to the devlopment team, on an otherwise superb job.
eZ publish looks very promising. If YOU WANT to significantly increase your user base (which may be big already), then please, please, please ... A simpler, clearer "Getting Started" description will help a lot.
No one expects polished docs for open source. But if the entry point barrier is set too high you will turn away many likely users. I am fairly technical, don't get intimidated too easily by either configuration or programming, but can get turned off by disorganized or confusing "Getting Started" descriptions.
have some patience. I know that the docs available are not sufficient for a newbie and the learning curve is a bit steep at the beginning. But version 3 was a complete change in architecture, so therefore the old documentation is not useful anymore. The emphasis for the product had been to release it in the first place, documentation only comes now into the scene. :-)
I have started writing a newbie doc at http://ez.no/developer/ez_publish_3/documentation/ez_publish_3/terminology_basics/ez_publish_3_for_newbies
However I can only work on it inbetween other jobs when I find a minute. You might want to start there and browse some of the other docs at
