This collection of essays by Dutch, English and Swiss scholars deals with the impact of transnational law, in particular the law of the European Union and the Council of Europe, on the content and meaning given to domestic law by national legislators and judges. Topics covered include the constitutional and practical implications of implementing transnational law at the national level, as well as the interpretation of domestic law against the background of the European Convention on Human Rights, the law of the European Union and so called “soft law” instruments, in areas such as civil procedure, jurisdiction, contract, company law and competition law.