Since entry into force of the Treaty of Amsterdam on 1 May 1999, the EU has considered, and in many cases adopted, many proposals for legislation or measures implementing legislation in the area of immigration and asylum law. These measures run the gamut from highly technical operational matters to broad measures covering basic aspects of immigration and asylum law. Between them, the proposed or adopted measures cover virtually every possible issue in relation to immigration or asylum. This book contains the text of and commentary upon a large number of these measures proposed or adopted up until 1 January 2006, including all of the most important ones. It also includes the text of the key measures concerning asylum, legal migration and irregular migration. A full list of the measures with references to their legislative history is provided. The authors of each commentary are experts in the field of EU immgration and asylum law, and the areas covered include visa and border controls, asylum, legal migration and integration, and irregular migration.