According to world-renowned game designer Jane McGonigal the answer is simple: videogames are fulfilling genuine human needs. shows how game designers have hit on core truths about what makes us happy, and use these discoveries to astonishing effect in virtual environments. But why, McGonigal asks, should we use the power of games for escapist entertainment alone? In this groundbreaking exploration of the power and future of gaming, she reveals how we can in fact start improving our own lives, our communities and our businesses one game at a time. Written for gamers and non-gamers alike, sends a clear and provocative message: the future will belong to those who can understand, design and play games. Book jacket.