'An impressively lucid and wide-ranging contribution to understanding political and philosophical controversies about authority, rules, rights and responsibilities in contemporary international relations.' - Andrew Linklater, Aberystwyth University 'Accessible, engaging, original and provocative, this is essential reading for anyone who wants to understand the scope and significance of this increasingly prominent field of study.' - Toni Erskine, University of New South Wales 'Drawing on the works of an array of thinkers from Aristotle to the present day, this exceptional book takes on the colossal yet much-needed task of revealing the scope, purposes and richness of International Political Theory and making the case for its methodological and normative utility in understanding, challenging, and transforming the seemingly intractable challenges of contemporary international politics. Written in accessible and stylish prose, this is that rare thing - a text that is both perfectly suited for students new to the field while also providing a seminal resource for scholars.' - Brent J Steele, University of Utah