This book is a compilation of much of the material I used for various game theory courses over, roughly, the past two decades. The first part, Thinking Strategically, is intended for undergraduate students in economics or business, but can also serve as an introduction for the subsequent parts of the book. The second and third parts go deeper into the various topics treated in the first part. These parts are intended for more mathematically oriented undergraduate students, or for graduate students in (for instance) economics. Part II is on noncooperative games and Part III on cooperative games. Part IV is only a mathematical tools chapter. Every chapter has a final section with problems. Selected hints, answers, and solutions to these problems are given at the end of the book. Complete solutions can be obtained from the author.

The book claims neither originality nor completeness. As to originality, the material draws heavily on game theory texts developed by many others, often in collaboration. I mention in particular Jean Derks, Thijs Jansen, Andr´es Perea, Ton Storcken, Frank Thuijsman, Stef Tijs, Dries Vermeulen, and Koos Vrieze. I am also greatly indebted to a large number of introductory, intermediate, and advanced texts and textbooks on game theory, and hope I have succeeded in giving sufficient credit to the authors of these works in all relevant places. As to completeness, the book is far from achieving this quality but I trust that it presents at least the basics of game theory. When writing and compiling the material I had ambitious plans for many more chapters, and only hope that the phrase that all good things must come to an end applies here.