Ages 6 to 10 years. American Football is one of North America's most beloved games -- a rough and tough sport that is full of strategy and strength. Young readers will get a full-colour tour of this sport and its greatest stars in Huddle up Football. Concise text explains rules of the game including: a full description of the game's positions; diagrams showing the field and player formations; popular professional players; touchdowns, field goals, and much more.