The revised second edition of this innovative textbook on methodology in social and political science focuses centrally on the debate between positivist and constructivist approaches. Lively and accessible, the book introduces a range of key issues which show how methodological pluralism can be comb[...]

Torbjorn L. Knutsen introduces ideas on international relations expressed by thinkers from High Middle Ages to the present day and traces the development of four ever-present themes: war, peace, wealth and power. The book counters the view that international relations has notheoretical tradition and[...]