Premiere is a full-featured nonlinear video editing system.
There's no hope of covering the full functionality on this page. I've concentrated on a lot of the stuff specific to our setup, and tried to cover most of the gotchas that I've found. There's not much here about the main function of premiere itself, namely working with clips and editing. That's covered quite well in the manual, which you'll want to also read. Starting up Log in to the console of moviola.