Beginner Documentation

I'd like to see more documentation geared towards beginners in IPB Development.

Something like a terminology page which lists things like actions, action overloaders, libraries, classes, etc. and how they're different from each other. Also, going through the file structure would help with this too as libraries, custom classes, and actions all go in different folders.

I'd also like to see a hierarchy diagram (like wordpress does here) to show how page requests are handled and what objects are handling what parts. Even a separate diagram for skins/templates would be great too.