The modern game of football is filled with plays and formations with names like the Counter Trey, the Wildcat, the Zone Blitz and the Cover Two. They have become part of the sport's vernacular, and yet for many fans they remain just names, often confusing ones. To rectify that, Tim Layden has drilled deep into the core of the game to reveal not only how these chalkboard X's and O's really work on the field, but also where they came from and who dreamed them up.

These playbook schemes, many of them illuminated by diagrams, bear the insignia of some of the game's great innovators, men like Vince Lombardi, Don Coryell, Tom Osborne, Bill Walsh, Tony Dungy and Buddy Ryan. But football has also been radically altered by the ingenious work of men with more obscure names, like Tiger Ellison, Emory Bellard and Mouse Davis.

In Blood, Sweat and Chalk, Layden takes readers into the meeting rooms-and in some cases the living rooms-where the game's most significant ideas were hatched. He goes to the coaches and to the players who inspired them, and lets them tell their stories. In candid conversations with some of football's most intriguing characters, Layden provides a fascinating guide to the game, helping fans to better see the subtleties of America's favorite sport.

The game of football is cyclical. Coaches today are getting too much credit for formations and offenses that were dreamed up years ago. Tim Layden does a wonderful job of tracing the origin of those ideas in Blood, Sweat and Chalk.
- Urban Meyer, Head Football Coach, University of Florida

Tim Layden explores the minds and ambitions of the game's formative thinkers. Serious students of football must have this on their bookshelves!
- Steve Sabol, President, NFL Films

Blood, Sweat and Chalk is a must-read for all football aficionados. I, of course, especially enjoyed reading about the great Don Coryell, a true innovator in the game we all love. His ideas changed football-and this book shows you how.
- Dan Fouts, Hall of Fame Quarterback, San Diego Chargers

Tim has created a playbook that's instructional, a history book that's fascinating and a football bible that's a must-read for anybody who loves the game. All in one.
- Dan Patrick, Host, NBC's Football Night in America

Tim Layden does a great job telling the story of the people and the ideas that had a major impact on the game of football as we know it.
- Mack Brown, Head Football Coach, University of Texas

This is one of the most important sports books of our generation-and a lot of fun too. The formations and philosophies that win Super Bowls and national titles are made crystal clear. If you live for fall weekends, this is your book.
- Peter King, Author, Monday Morning Quarterback