Born in 1968 in Hamburg (Germany). Studied from 1989 to 1995 educational science, psychology and sociology at the University of Hamburg. Received my Diplom (equivalent to a Master) in 1995. Worked in several research projects (youth, media and adult education). Received my doctorate (Dr. phil.) in 2005. Worked in a research project about "media literacy". Since 2007 Professor for Media and Lifelong Learning at University of Potsdam.