This readable and up-to-date introduction to Plato's political theory is the most comprehensive account since Ernest Barker's classic 1918 work, Greek Political Theory: Plato and his predecessors. Giving life and interest to the central strands of the Republic, George Klosko traces the development of Plato's political thought around his life-long preoccupation with moral and political reform. He draws connections throughout between changes in Plato's political and changes in other aspects of his philosophy, especially epistemology and moral psychology.