Book excerpt: Since its foundation, the Council of Europe has established a common legal system for European states, based on democracy, the rule of law and human rights. Its standard-setting texts have helped its members meet the challenges of changing societies and now apply all over Europe given the organisation¿s unprecedented geographical enlargement since 1989. In this connection, the Council of Europe has played a key role in the accession of the new member states to the European Union. The first section of the book deals with the "constitutional" law of the Council of Europe, or its internal statutes in the broad sense. It covers the 1949 Statute, which, along with related texts, lays down the Council¿s aims and determines its membership and operating methods. The second section concerns the role played by the Council of Europe - which has always been very active in standard-setting - in the harmonisation of European states¿ domestic law. The third section situates Council of Europe law in the European context. For instance, it studies the extent to which Council of Europe conventions have been incorporated in domestic law and how Council of Europe law and European Union law co-exist.