This book sets out the case for a cosmopolitan approach to contemporary global politics. It presents a systematic theory of cosmopolitanism, explicating its core principles and justifications, and examines the role many of these principles have played in the development of global politics, such as framing the human rights regime. The framework is then used to address some of the most pressing issues of our time: the crisis of financial markets, climate change and the fallout from the wars in Afghanistan and Iraq. In each case, Held argues that realistic politics is exhausted, and that cosmopolitanism is the new realism.

See also Garrett Wallace Brown and David Held's The Cosmopolitanism Reader.