This book reflects the various dimensions of play. It gathers together experience with role-play, tabletop, and online games and develops and assesses tools. It also reflects the human condition in this world of games as it becomes a digital world. We are living in a World of Games where every game is a world through which we learn about the world. A World of Games is fun and engaging, but it also provides deceptive pleasures. What may seem like fun is far from harmless. And then there are the many ways of learning in the mode of play.