Ages 6 to 12 years. Dynamic photgoraphs energise this exciting series on extreme sports and their cultures! Engaging text, historial trivia, star profles and the sports' hot spots add up to one wild ride. Set includes: Extreme BMX; Extreme Climbing; Extreme In-Line Skating; Extreme Motocross; Extreme Mountain Biking; Extreme Skateboarding; Extreme Skiing; Extreme Skydiving; Extreme Snowboarding; Extreme Sports; Extreme Surfing; Extreme Wakeboarding.