This fourth volume of The Foundations of Behavioral Economic Analysis covers behavioral game theory. It is an essential guide for advanced undergraduate and postgraduate students seeking a concise and focused text on this important subject, and examines the evidence on classical game theory and several models of behavioral game theory, including level-k and cognitive hierarchy models, quantal response equilibrium, and psychological game theory.This updated extract from Dhami's leading textbook allows the reader to pursue subsections of this vast and rapidly growing field and to tailor their reading to their specific interests in behavioural economics.