If you had asked me last week what the best book for Actionscript 3.0 was, I would have said “Learning ActionScript 3.0″ from O’Reilly press.
I have totally changed my mind on that. I recently picked up “Foundation Flash CS4 for Designers” from friends of Ed press.
It is a fantastic book for Flash CS4 and Actionscript 3. It is not a beginning book but quite a good book for intermediate/advanced users. It’s comprehensive for all basic skills, which makes it a thick book. If you want a project-based book to work through for a few weeks – this is it!