Joost Raessens holds the chair of Media Theory at Utrecht University. His research concerns the ‘ludification of culture,’ focusing in particular on the notion of play as a conceptual framework for the analysis of media use. Raessens was the conference chair of the first Digital Games Research Association (DiGRA) conference Level Up in Utrecht (2003) and is on the editorial board of Games and Culture (SAGE). Raessens is co-supervisor of the Playful Identities (NWO), the Design Rules for Learning Through Simulated Worlds and the Mobile Learning-Citizen Science (both GATE) research programs. He is one of the founding members of GAP: the Center for the Study of Digital Games and Play.