Book excerpt: Essential for armchair umpires and scorekeepers, this guide challenges aficionados on every significant part of the Official Baseball Rules. Few sports lovers are as obsessed with rules and statistics as baseball fans. In So You Think You Know Baseball?, lifelong baseball enthusiast Peter E. Meltzer catalogues every noteworthy baseball rule from the Major League rulebook and illustrates its application with actual plays, from the historical to the contemporary. You can read the book from start to finish or consult it while watching a game to understand the mechanics of a play or how it should be scored. Meltzer analyzes the entire Official Baseball Rules using hundreds of Major League plays involving both plays on the field situations and plays which have involved the official scorer. This is the first book ever written which analyzes the entire rulebook in this fashion and which is based on actual plays. With Meltzer’s unique and thoroughly entertaining guide in hand, which includes a foreword by baseball rules expert Rich Marazzi, you’ll never have to scratch your head over an umpire or scorekeeper’s call again.