It is a special pleasure to welcome the 22nd book in the series The Common Core of European Private Law. This book is edited by two Dutch scholars. Their works are already renowned and appreciated well beyond the ‘Common Core’ circles.

The Common Core project was launched in 1993 at the University of Trento under the auspices of the late Professor Rudolf B. Schlesinger. The methodology used in the Common Core project, then novel, is now a classic. By making use of case studies, it goes beyond mere description to detailed inquiry into how most European Union legal systems resolve specific legal questions in practice, and to thorough comparisons between those systems. It is our hope that these volumes will provide scholars with a valuable tool for research in comparative law and in their own national legal systems. The collection of materials that the Common Core project is off ering to the scholarly community is already quite extensive and will become even more so as more volumes are published. The availability of materials attempting a genuine analysis of how things seem to be is, in our opinion, a prerequisite for an intelligent and critical discussion on how they should be. Perhaps in the future European private law will be authoritatively restated or even codified. As of today, the Common Core project is the longestrunning scholarly enterprise in the field. The analytical work carried out by the more than 300 scholars that have so far joined us in the Common Core project is also a precious asset of knowledge and legitimisation for any such a normative enterprise.

We must thank the editors and contributors for their work. With a sense of deep gratitude, we also wish to recall our late Honorary Editors, Professors Rudolf B. Schlesinger and Rodolfo Sacco.

No scholarly project can survive without committed sponsors. The International University College of Turin allows us to organise the General Meetings together with the Centro Studi di Diritto Comparato of Trieste. The European Commission has partially sponsored some of our past General Meetings, having included them in their High Level Conferences Program.