Gray Cook's book Athletic Body In Balance is an amazing piece of work. It's one of those books that the more I read it, the better it gets. If you're a coach or a trainer, it is a must-read. Gray Cook's second book, Movement: Functional Movement Systems, will be available from davedraper.com later this month and I will be buying it, and I would highly suggest you do the same.
Excerpts from Gray Cook's new book, are up on Dave Draper's IronOnline Strength & Conditioning blog:
Movement: Functional Movement Systems by Gray Cook