Reinhard Klein studied Mathematics and Physics at the externUniversity of Tübingen, Germany, from where he received his MS in Mathematics
(Dipl.-Math.) in 1989 and his PhD in computer science in 1995. In 1999 he received an appointment as lecturer ("Habilitation") in computer science also from the University of Tübingen, with a thesis in computer graphics. In September 1999 he became an Associate Professor at the externUniversity of Darmstadt, Germany and head of the research group externAnimation and Image Communication at the externFraunhofer Institute for Computer Graphics. Since October 2000 he is professor at the University of Bonn and director of the Institute of Computer Science II.