Starting Strength, 3rd edition – A crazy in depth look at the big barbell exercises. Mark Rippetoe breaks down the lifts better than anyone in the business. It does not matter if you’re an experienced or novice lifter, this book will help you. Your form will be better. Which means you can lift more. Which means you can put on more muscle. And best of all, you’ll be injured less so you can train more.
Becoming a Supple Leopard: The Ultimate Guide to Resolving Pain, Preventing Injury, and Optimizing Athletic Performance – Kelly Starlet is the guru of mobility. There’s no one I trust more with the prevention/recovery of injuries and ailments then Dr. Starlet. This book has great pictures to go along with fantastic written knowledge of the human body. A must have for any serious trainer.