Jan Klabbers is Professor of International Law at the University of Helsinki, Finland. He studied international law and political science at the University of Amsterdam. He is a regular consultant to a number of international organizations and has been visiting professor at a number of institutions of higher learning, including the Graduate Institute (Geneva) and Sorbonne (Paris). He directed the Academy of Finland Centre of Excellence in Global Governance Research (2006–2011), and from 2013 to 2018 held the Martti Ahtisaari Chair.