So You Think You Know Football? is 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. Do you know why spiking the ball immediately to stop the clock is not considered intentional grounding, while hesitating a few seconds then spiking the ball is? See if you would have made the right call in a game played...