Applying a rational choice perspective, this book presents a dynamic theory of the evolution of totalitarian regimes and terrorism. By demonstrating that totalitarian regimes rest on ideologies involving supreme values that are assumed to be absolutely true, the author identifies the factors that lead to totalitarian regimes, and those that transform or abolish those regimes with time. The author addresses different ideologies, such as National Socialism, Communism, and religious movements; examines numerous historical cases of totalitarian regimes; and develops a formal, mathematical model of totalitarianism in the book’s closing chapter.