sswift: Well a book would probably be too much work, but how about a nice simple website with tutorials, equations, and reference material? You posted a big list of helpful equation stuff you've collected once. I've got it saved in a txt file. Type that up nice and organize it, throw a few tuts together from stuff you've already written, and there you go :) I have yet to find a really good site with useful general programming/game programming reference material. I thought of putting one up myself a few times..