Rating : - Excellent Resource
This book is an excellent resource. It is not, however, a casual read. The concepts in this book get very in depth and specific.

In order to understand all the adjustments and "tags" added to route packages, you must have a sound understanding of coverage schemes. For each route package the author goes into detail on what modifications (routes, formations, motions) can be used to exploit almost any coverage. This includes not only basic cover 0,1,2,3,4, but also 2 man free, cover 3 sky and cloud, banjo/triangle man coverage etc. As you can see, much of this will be hard to decipher if you do not have a fundamental understanding of these coverage schemes.

Another challenge that his book presents is how to incorporate these ideas into a pre-existing system. It may seem like a true "bunch" system is nothing but 4 WR's and a lone back in the backfield. This would not fit a lot of offensive systems, let alone personnel. Fortunately, this book dispels the single back myth, and includes many alternative ways to line up, both formation wise and personnel wise. For example, you could set X and Z to the left, Y in the tight end spot on the right, and an offset "I" backfield with the fullback offset to the right (strong). This does not sound like a bunch formation, but by simply motioning Z across the Y, you now have Z as #1, Y as #2, and F as #3 all frontside. This formation and motion would be achieved by the call: Larry Strong, Z 6. As you can see, this is pretty concise and simple.

My favorite part of the book is not the routes or adjustments, but rather the author's system for formations and motion. He uses a very flexible and consistent system that gives you a lot of freedom as a play caller. I have been searching for a formation/motion system that is numerical, short, simple, and intuitive and I believe the one presented in this book is one of the best I have come across. I highly recommend this book.