this book is great, as it goes thru in incredible detail endless ways of playing on the D-line, in terms of tactics, fitness and technique.

It goes thru all the moves that are vital for d-linemen to overcome blockers, such as rip, club, swim, bull-rush, plus more. It explains throwing of the hands technique, as well as proper body stance and footwork which is also important.

on top of all the thoery, it gives plenty of drills for coaches to use also.

all in all, its a comprehensive book on all things D-line!

The only negative i have about the book is the fact that there should be better diagrams of how various schemes/techniques are used. U really have to picture it in ur head when reading the book, cause there is no photo diagrams only simple line diagrams.