Staffan Bj?rk has a Ph.D. in Informatics from G?teborg University, Sweden. He has been the studio manager of the PLAY studio at the Interactive Institute in Sweden between 2001 and 2003 and currently works part time as senior researcher at PLAY and part time teaching at Chalmers University of Technology. He is elected president of the Swedish human-computer interaction interest group, member of the executive board of the Digital Games Research Association, and author of many articles about game research.