This thoroughly revised and updated Research Handbook addresses key questions and challenges in EU private international law. Bringing together perspectives from both civil and common law, it examines not only civil matters, such as contract and tort, but also recent developments in family and succession law. Expanding on topics discussed in the first edition, this Handbook includes new chapters on class actions, party autonomy, behavioural economics and the harmonisation of private international law in successions and parental responsibility. It adds to the analysis of the Rome I and II Regulations, with particular focus on the law applicable to defamation and privacy. The Handbook also explores parallel proceedings and the lis pendens rules, as well as a novel application of the effectiveness of EU law in the context of both Brussels I and arbitration. This edition assesses current proceedings and identifies new areas for improvement in EU private international law. This illuminating Handbook is a crucial reference point for scholars and students in private international law, European law, family law and the law of succession. Legal practitioners and commercial lobbyists will also benefit from its insights.