The history of international relations has been shaped by a sequence of 'Great Debates', in which leading scholars of the field advanced, challenged, and defended views about the assumptions that should inform the study of world politics. In this authoritative collection, the editors bring together for the first time the most important contributions to these inspiring intellectual exchanges and provide an excellent overview of the discipline's development since its inception in the early 20th century. Students and scholars in international relations as well as neighboring disciplines will find this title to be an indispensable and highly informative source of reference.