The essays in this volume attempt to explore and elucidate some of the legal and constitutional complexities of the relationship between the EU and the WTO, focusing particularly on the impact of the latter and its relevance for the former. The effect of WTO norms is evident across a broad range of European economic and social policy fields, affecting regulatory and distributive policies alike. A number of significant areas have been selected in this book to exemplify the scope and intensity of impact, including EC single market law, external trade, structural and cohesion funding, cultural policy, social policy, and aspects of public health and environmental policy. Certain chapters seek to examine the legal and political points of intersection between the two legal orders, and many of the essays explore in different ways the normative dimension of the relationship between the EU and the WTO and the legitimacy claims of the latter.