Congruent Exercise is a handbook for safe, sustainable strength training. If you are interested in flash and sizzle, you might overlook this book, but you shouldn't. In my experience, the most important factors in improving fitness are patience and consistency. The "calendar method". It is hard to demonstrate either patience or consistency when you are hurt. And make no mistake, injuries come when you train hard. If you are a competitive athlete, I guess you have to accept that and deal with it (but your workouts shouldn't hurt you). If however, you want to "look good naked", feel good, and have the ability to carry out everyday tasks as you get older, then keeping your joints and muscles injury free should be priority one.Bill DeSimone has put together an intelligent, logical book that flows from his long experience as a trainer and from his study of biomechanics to address his own injuries. He lays out the how and the why in Congruent Exercise. Exercises are described and are linked to his youtube channel for viewing.I'm applying his ideas in my own training, and have nothing but good things to say about the results. Well, other than I wish I knew some of these things years ago, and had been smart enough to apply them. Macho stubbornness resulted in a list of aches and pains that were probably all avoidable.This book should be on the shelf (or Kindle) of everyone serious about exercise.