I would definitely suggest this book for people who want to start training children and young adults. The book is well organized and has easy to understand
and follow exercise descriptions. Most of the drills have progression levels necessary to provide physiological improvements. Most importantly, the drills in the book are beneficial for kids disregarding of their sport and are really good for non-athletes.
Long-time professional who is looking for a new workout ideas will not find this book very useful though.