James Paul Gee begins his classic book with "I want to talk about video games--yes, even violent video games--and say some positive things about them." With this simple but explosive statement, one of America's most well-respected educators looks seriously at the good that can come from playing video games. In this revised edition, new games like World of WarCraft and Half Life 2 are evaluated and theories of cognitive development are expanded. Gee looks at major cognitive activities including how individuals develop a sense of identity, how we grasp meaning, how we evaluate and follow a command, pick a role model, and perceive the world.