Hartmut holds a chair for Media and Communication Studies at the University of Mannheim. He has conducted research and taught classes as a visiting scholar at New York University, the Universidade Federal de Minas Gerais in Belo Horizonte, Brazil, and the University of Zürich. Hartmut gained his doctorate in Journalism and Mass Communication at the University of Hamburg. He is the Co-Chair of the German Communication Association. His work revolves around the democratic qualities of online and offline public debate.
At THE NEW INSTITUTE, Hartmut is involved in the program Depolarizing Public Debates.