This book is a very good introduction to special teams from both a team and individual perspective. Allen was one of the first coaches to commit equal time to the practicing and coaching of special teams. Although the book covers most evryhting in great detail, it can be very elementary at times. Most good special teams units employ a multiple approach just like the offense and defense. There are shortcomings in this area but, with a little imagination, you should be able to add to the base of knowledge given here.