The book introduces a constructive interdisciplinary dialogue and comparative approach, highlighting the partial and fragmented understanding of policy transfer and the questions and challenges in the study of policy transfer in three parts. Firstly, notions of transfer and circulation, including law, (political) economy, sociology and history; secondly, a focus on European studies and the transfer of norms, both within and outside the EU; and finally, an examination within a broader IR context. This text will be of key interest to scholars and students of European Union politics/studies, international relations, public policy, economics and law, as well as practitioners dealing with regional integration.