The book focuses on, identifies, and analyzes various divisions and conferences of four professional sports leagues and their teams' historical regular season and postseason performances, and also provides a recent financial profile of them while being competitive, profitable or unprofitable, and well-known enterprises. The parent sports organizations are the American League and National League in Major League Baseball, American Football Conference and National Football Conference in the National Football League, and the Eastern and Western Conference each in the National Basketball Association and National Hockey League.