When I decided to brush up on weight training I got several books out of the library including this one and the one written by Delavier for women. This book was the best and I wouldn't even consider the one for women because some fool forgot to put arm exercises in that one! This book show several different exercises using free weights or gym style weight machines for each muscle group. There are fabulous drawings of the muscles on various parts of the body, descriptions of how to slightly modify the exercise to subtly shift the muscle group, and plenty of detail of form and injury prevention. The author talks a bit out the skeletal system, tendons, ligaments, and vulnerabilities to watch out for in different parts of the body. I gave this five stars because it was good enough to buy to keep on my shelves and I've referred to it alot.