This book starts from the premise that UK constitutional law currently faces a host of challenges relating to, for instance, devolution, its relationship with processes of European integration, and the impact of the Human Rights Act. These challenges defy its traditionally pragmatic character and call for a systematic re-examination of its methodology. In particular, they bring into sharp relief the need to devise a robust inter-disciplinary approach to constitutional issues. The edited collection brings together constitutional law experts who will discuss how such a methodology can be designed that applies insights from history, sociology, political theory and philosophy to the study of the UK Constitution in a way that can inform legal doctrine.