"The motherlode of NFL rules and their interpretations. Whether you know everything about on- and off-field rules or are a true novice, Austro deftly illustrates the ins and outs of the NFL rulebook using examples from actual games. Test your inner referee with questions about the correct call and how slight changes might affect the ruling. Keep this book right next to your favorite football-watching chair to consult during the game and visit ThinkYouKnowFootball.com to stay updated on interpretations affected by rule modifications."--back cover.