The European Union has undergone major changes in the last decade, including Treaty reform, and a significant expansion of activity in foreign and security policy, and justice and home affairs. In the first edition of this influential textbook, a team of leading lawyers and political scientists reflected upon the important developments in their chosen area over the time since the EC was formed. This new edition continues this analysis ten years on. Taking into account the social and political background, and without losing sight of the changes that came before, in each chapter the contributors analyze the principle themes and assess the legal and political forces that have shaped its development. Each author addresses a specific topic, event, or theme, from the European Court of Justice to Treaty reform; the enlargement of the EU to administrative law; the effect of EU law on culture to climate change. Together the chapters tell the story of the rapid development of EU law - its past, present, and future.