Professor Ferrari has just published with Oxford University Press the second edition of an article-by-article commentary on the Regulation (EC) No 593/2008 of the European Parliament and of the Council of 17 June 2008 on the law applicable to contractual obligations, of which he is also a co-author. As Professor Ferrari writes in the Preface to the book authored by an international group of academics and practitioners, parties to any transaction require predictability and legal certainty, as it is the predictability and legal certainty that allow the parties to assess the legal and economic risks involved in the transaction and, thus, allows them to decide whether to enter into the transaction at all. This need is felt even more strongly where the transaction is not a purely domestic one but is linked to more than one country. To reach the desired predictability and legal certainty in an international context, various approaches have been resorted to. The drafting of uniform rules of private international law is one such approach. It aims at guaranteeing that courts in the States where such uniform rules are in force will apply the same substantive rules no matter what court a dispute is brought before, thus reducing transactions costs by requiring a party to make provision for one law only. The Regulation (EC) No 593/2008 of the European Parliament and of the Council of 17 June 2008 on the law applicable to contractual obligations (Rome I) sets forth such a set of uniform private international law rules for (most of) the member states of the EU. The book provides students and practitioners with a concise and instructive article-by-article commentary which explains the underlying concepts and suggests solutions for problems that have arisen or may arise in the application of the Regulation.