This Handbook covers all the main issues and approaches in the increasingly important field of International Political Theory, including war and violence, human rights and humanitarianism, justice, democracy and accountability, as well as all the important areas of global public policy ranging from trade and aid to poverty alleviation and climate change. The unique selling point of this volume is its comprehensive nature, and its focus on ‘real-world’ politics and the interaction of theory and empirical social science. The 50 chapters in this volume showcase the distinctive and valuable contribution of normative inquiry in recognising, clarifying, and responding to real world problems.