What do Wayne Gretzky and thermodynamics have in common? A lot more than you might think. The game the National Hockey League calls "the coolest game on earth" is also a fast-paced, dynamic display of physics in action. Aimed at hockey fans, this text uses plain language to describe the physical principles involved in the sport. Physicist and amateur hockey goalie Hach ̌(U. de Moncton, Canada) explains, among other topics, the biomechanics of skating, why ice is slippery, and why a slap shot is the fastest way to move the puck a long distance. The volume features photos of hockey players along with diagrams illustrating the principles discussed.