Finally there is a book that brings together international law and EU law perspectives to the European Unions position in, and interactions with, the international legal order. While this subject will never be totally exhausted, the authors should be congratulated for their thorough and richly documented analyses. Truly a long-awaited book! -- Jan Wouters, KU Leuven, Belgium The book offers a comprehensive, nuanced analysis of the complex, and at times conflictual, interactions between EU and international law, expertly bridging disciplinary silos. The authors argue persuasively that these interactions are interconnected, leading to both the internationalisation of EU law and the shaping of international law by the EU. A must-read for EU and international lawyers alike, as well as for anyone seeking to understand the EU when interacting with it from the outside. -- Katja S. Ziegler, University of Leicester, UK As EU law and international law scholarship continues to drift apart, this book shows us how dialogue between the disciplines can enrich our understanding of both. Synthesising perspectives, and bolstered by insightful case studies, the authors provide a thorough and nuanced exploration of the intricate interplay between these two legal orders. -- Jed Odermatt, City, University of London, UK