This book explores new thinking on constitutionalism, governance and regulation. This new thinking is emerging against the backdrop of constitutional restructuring in the UK and elsewhere as well as in the context of European Union developments. There are important issues emerging about regulation and democracy in all the other various sites of power - the European post-state arrangements, the nation state in its splintering forms, regions and cities, public and private space, the economy and the corporate world, and both formal and informal politics. This book seeks to engage with many of these.The focus of the work is beyond the formal agenda of reform, looking instead at how ideas of constitutionalism and governance are undergoing a transformation and being expanded beyond traditional notions of the control of government and the liberal project of translating universal principles into common standards for the establishment of agreed functional institutions. The book brings together a number of authors who have, through their work, attempted to understand the multiple meanings of such changes for the future of constitutionalism and governance. In an environment of rapid change to formal constitutions, of new voices entering the continuing dialoge about constitutionalism and governance, these essays aim to recognize the complexity and fragmentation typical of modern times and emphasize the multi-layered nature and future development of cosmopolitan governance.