This course offers an introduction to game theory. Game theory develops analytical tools to study strategic interactions between individuals, to better understand and predict behavior, conflicts and cooperation. Game theory is widely used in many disciplines (e.g., economics, political science, law, computer science, biology). The course introduces basic concepts and tools for solving games (e.g., simultaneous games and a Nash equilibrium, sequential games, repeated games, asymmetric information models) as well as a variety of applications (e.g., auctions, evolutionary biology and voting). Through simple examples, students can develop their ability to think strategically.