A game theory is this strict strategic thinking. This art to guess next motion of rival together with knowledge that he engages in the same. Basic part of theory conflicts with ordinary worldly wisdom and good sense, therefore her study can form a new look to the device of the world and co-operation of people. On examples from the cinema, sport, politics, histories authors show, as almost all companies and people engaged in the co-operations described by a game theory. Knowledge of this object will do you more successful in business and life.