Olivier Klein teaches social psychology at the Université libre de Bruxelles (ULB), where he heads the centre for social and intercultural psychology as a full Professor. He also teaches part-time at UMons. He obtained his PhD degree at ULB and did a BAEF post-doctoral fellowship at the University of Minnesota. His research topics include conspiracy theories, responses to misinformation, intergroup conflict, social stereotypes, collective memory and sexual objectification. He is co-editor of the International Journal of Social Psychology and maintains a general interest blog in the field of social psychology (source)
He has published more than 150 papers, and is the author of 3 books.