Great book for all levels. Great fundamentals, and more indepth coverage than most can handle (lots of biology). I first bought this book in college, but a few moves later it was lost. I recently bought this book thru amazon as a handy reference, especially when I get bored of a routine and need to look for alternative weight exercices. I'm not trying to get bulky, just toned and fit ~ this book is great even if you don't want to be Mr/Mrs Universe. On the down side, it is a bit dated, and could include new research and weight routines.