Remarkable similar to my own history with Postgresql, which I started using in ~1998 at the time of their first public release.  Postgresql documentation has indeed been the exemplar for all software, open source or not.  It&#x27;s been the SQL textbook I&#x27;ve relied on.<p>With the steady addition of features, it&#x27;s gotten much more complex, and there will come a time when using just the documentation won&#x27;t be enough to learn how to use Postgresql to full advantage.  With release of 9.5 we might be there now.<p>Perhaps the logical extension of the documentation is some form of coursework to enable users to learn the DB systematically.  I haven&#x27;t looked into it, this might already be offered.