«[T]his book is a first-class account of the treatment by the EU Courts of the Unions international agreements»

J. Heliskoski, European Law Review

«This book, due to its original analysis, is a considerable contribution to the field of global constitutionalism and comparative regional integration, and for that reason is strongly recommended to readers interested in understanding the important role international and regional courts play in developing the global and regional legal orders. This book is not only recommended to professors and researchers from various disciplines like law, political science or history eager to strengthen their knowledge on the relationship between the European legal system and other international legal regimes, like the WTO, but also to officials, experts and practitioners working on EU agreements and/or regional integration projects.»

Juan A. Mayoral, Journal of Common Market Studies

«The author's factual approach is refreshing. The empirical work sheds a new light on a classic theme in EU external relations law With this book, Mendez has contributed substantially to the further understanding of the role and function of international agreements in the development of EU external relations law. He has written an impressive book on the basis of equally impressive empirical research - a must-read for anyone dealing with EU Agreements.»

Ramses A. Wessel, Common Market Law Review

«The final result is certainly remarkable, in that this book represents an unprecedented glance at fifty-years of the case law of the EU Courts, in which the author compares the stances taken by the judicature with the different arguments scholars have put forward on the same issues in almost the same period of time.»

Giacomo Gattinarain, Legal Issues of Economic Integration

«Mario Mendez's monograph is an impressive work which is based on a thorough evaluation of cases. The work is characterized by its clear methodology and systematic approach which enables the reader to follow easily the author's reasoning. This book is recommended to everyone who is interested in the interaction of European treaty law, international law, and the implication for and enforcement in the national legal orders of EU Member States.»

Mareike Frohlich, Yearbook of European Law