Anyone (bodybuilder or not) who is interested in how do build lean mass and lose fat should have this book in their library. I am so tired of negative "reviews" that state the book has "nothing new" or its information can be found for "free on the Internet". Obviously the same can be said for almost any book-- almost anything can be found on the Internet (even copyrighted material!). However, that requires finding the material, filtering out all of the conflicting information and judging whether to trust the source of the information found on the Internet. The whole point of buying a book, any book, is that the material is edited, presented in a clear, logical fashion, is supported by citations or research, and is written by an authority. This book gets 5 stars in all those respects!