Catherine Barnard is University Senior Lecturer in Law and Jean Monnet Chair of European Law at the University of Cambridge and a Fellow of Trinity College. Joanne Scott is University Reader in European Law,and Fellow of Clare College, Cambridge University.

• The evolution of the single market, Paul Craig; pre-emption, harmonisation and the distribution of competence to regulate the internal market, Stephen Weatherill; proportionality and subsidiarity, George Bermann; flexibility in the European single market, Nick Bernard; horizontality, Stefaan Van den Bogaert; enforcing the single market - the judicial harmonisation of national remedies and procedural rules, Michael Dougan; unpacking the concept of discrimination in EC and international trade law, Grainne de Burca; market access and regulatory competition, Catherine Barnard and Simon Deaking; mutual recognition, Kenneth Armstrong; mandatory or imperative requirements in the EU and the WTO, Joanne Scott; the single market, movement of persons and borders, Elspeth Guild; competition policy and the shaping of the single market, Albertina Albors-Llorens; free movement of capital - learning lessons or slipping on spilt milk, Steve Peers; the external dimension of the single market - building (on) the foundations, Marise Cremona.

This collection, edited by Catharine Barnard and Joanne Scott, brings together a strong team of European lawyers seeking to unpack some of the core legal concepts underpinning the Single European Market. All in all, this edited collection is of a generally high calibre and deserves to be widely read... this collection contributes to many of the current debates on the single European market and brings to the fore the imprecision that still surrounds many of its core concepts. Yearbook of European Law August 2004