This book provides a distinctive and rich conception of methodology within international studies. From a rereading of the works of leading Western thinkers about international studies, Hayward Alker rediscovers a 'neo-Classical' conception of international relations which is both humanistic and scientific. He draws on the work of classical authors such as Aristotle and Thucydides; modern writers like Machiavelli, Vico, Marx, Weber, Deutsch and Bull; and post-modern writers like Havel, Connolly and Toulmin. The central challenge addressed is how to integrate 'positivist' or 'falsificationist' research styles within humanistic or interpretive ones. The author argues that appropriate, philosophically informed reformulations of conventional statistical and game-theoretic analyses are possible, and describes a number of humanistic methodologies for international relations, including argumentation analysis, narrative modeling, computational models of political understanding and reconstructive analysis.