New on his blog Cal Evans looks at an interesting topic that several developers out there might not think about - is WordPress training needed?.
Has WordPress become so simple that it requires no training? Honestly, if you are a PHP developer already, yes, it is that simple. Ok, so the code isn't OO and that drives a lot of purists up the wall but at the end of the day, it's functional and that's what is important. Like PHP itself, WordPress is a tool that lets you get the job done.
He talks about the different sides of the same coin - the PHP developers that need to get their hands into WordPress' code but need a little guidance and the users that need to understand the interface that this code provides to get the most out of their sites. He also points out a few resources where you can start on your quest to WordPress mastery like Mitch Canter's blog and Aaron Brazell's blog as well as videos on lynda.com.