The proposed project consists in the preparation and launch of a casebook on Judicial Review of Administrative Action and its underlying website. By comparing the French, German, English, Dutch and EU legal orders, this casebook aims at investigating the similarities and differences between the legal systems, as well as the influence of European legislation and case law in this area.This casebook should be seen in the framework of the ‘Ius Commune Casebook Project’ which, through cooperation among legal scholars from all over Europe, enables academics and students across Europe and beyond to study and discuss the same leading cases and materials. The casebooks combine extracts from national case law and other sources with excerpts from the European level and thus take a 'bottom-up approach' to the study of the law. Introductions, explanatory and comparative notes and questions tie the materials together and put them in context. As hinted upon by the series title (“Ius Commune Casebooks for the Common Law of Europe”), the casebooks also intend to uncover common principles already underlying existing laws. Currently, casebooks on Consumer Law, Contract Law, Non-Discrimination, Property Law, Tort Law and Unjustified Enrichment are already available and many more (e.g. on civil procedure) are in preparation (see http://www.casebooks.eu).Passing through the stages of writing country reports, selecting relevant excerpts of cases and materials and uploading them onto a dedicated online system, and ultimately drafting comparative chapters focused on specific issues of judicial review, and after four meetings of the authors, the first two outputs of this project will be a book, which will be published with Hart Publishing, and a website, which will complement the casebook. The third output will be a book launch conference, during which the main conclusions of the book will be presented and the general theme of Europeanisation of judicial review systems will be discussed.