In the past few years, it has become increasingly self-evident that the research methodologies of international law can no longer be confined to pure normative and doctrinal analysis. They need to be complemented by interdisciplinary approaches. Indeed, a new generation of scholars is engaging in pioneering empirical and socio-legal studies in fields as diverse as arbitration, international economic law and international courts and tribunals. I believe we are witnessing a wave of change within the international legal academia and the chapters featuring in this collection are testament to that paradigm shift, being themselves instances of cuttingedge research in the socio-legal and empirical law fields. Empirical, socio-legal and, in general, interdisciplinary analyses of international legal issues now abound. Technological advancements greatly facilitate the ongoing transition to a pluralist approach to research methods in international law, at the same time allowing use of specialized, yet user-friendly, computer software for empirical investigation and increasing the availability of online materials to conduct doctrinal analysis through ever faster and comprehensive databases.