This book provides a comprehensive summary of German constitutional law, in particular the case law of the German Federal Constitutional Court. It provides first-hand insight into the complex principles of the Basic Law, or Grundgesetz (GG), and an authoritative introduction to the history of the German constitution, the Basic Law, and the methodology of the Federal Constitutional Court. As well as an analysis of the general principles of German constitutional law, the book covers the salient articles of the German constitution and offers relevant extracts of the Court's most important decisions on the provisions of the Basic Law. It provides notes and discussions of landmark cases to illustrate their legal and historical context and give the reader a clear understanding of the principles governing German constitutional law. The book covers the fundamental rights catalogue of the Basic Law and offers a comprehensive account of its intellectual moorings. It includes landmark jurisprudence on the equal treatment of same-sex couples, life imprisonment, the legal structure of property, the right to assembly, and the right to informational self-presentation. The book also covers the provisions and respective case law governing the state structure of Germany, for instance the recent decisions on the prohibition of the far-right German nationalist party, and the Court's jurisprudence on European integration, including the most recent decisions on the OMT program of the European Central Bank.