Anyone who has learned or attempted to learn ActionScript in the past has either purchased, read, or at least heard of Colin Moock and his awesome books, particularly ActionScript for Flash MX: The Definitive Guide which is, in my opinion, THE book for learning to code for Flash.
Well, although WAY late (AS 3 is already out!!!), his new AS3.0 book is due out soon and it is a complete re-write. Here is an interview video in which Mike Downey from Adobe interviews Colin about the new book. I recommend viewing it in fullscreen: