Agreed. Game Scripting Mastery is a great book. In fact the entire Premier Press Game Development series is excellent. I can't speak highly enough of them. They cover pretty much everything related to modern game dev. These books have finally put my tattered and dog-eared copy of 'The Black Art Of 3D Game Programming' to rest. I find the Premier Press books infinitely more helpful and easier to read than a lot of the other dry/boring propellor-head type books.