Born in Dortmund, studied art history, German language and literature, and modern history in Bonn, curator of various exhibitions (including August Sander, Candida Höfer, Jeff Wall) and at the Photographic Collection/SK Stiftung Kultur, Cologne (August Sander estate); Long-standing head of the photography department at a Cologne auction house; long-standing research assistant to Candida Höfer; research assistant at the Gotthard Graubner Archive; numerous specialist publications on classical modernism, contemporary art and photography; representative at Grisebach since 2013.