After successive waves of EU enlargement, and pursuant to the entry into force of the Lisbon Treaty, the European Court of Justice finds itself at the brink of a new era. Both the institution itself and the broader setting within which it operates have become more heterogeneous than ever before. As a consequence, the issues now arriving on its docket are also often of dazzling complexity, covering an unprecedented number of fields. Judging Europe's Judges examines the impact of these developments, analyzes the legitimacy of the Court's output in this novel context, and provides a systemic appraisal of its overall performance. In doing so, specific attention is paid to its most recent case law on four topics: the general principles of EU law, external relations, the internal market, and Union citizenship. Written by experts in the field, this is a fascinating study for all those interested in EU law.