From the instruction booklet: As the name suggests, this is a trivia game for baseball fans who want to test their knowledge about America's first pastime. While the game does focus primarily on MLB teams and players, it also includes questions on baseball history, international baseball, minor league baseball, and other professional baseball leagues. One feature, which many people appreciate, is the 'rookie' category for novice baseball fans. This allows everyone to play and have a chance at winning.