Claude W. Sui has been director and curator of the Forum for International Photography of the Reiss-Engelhorn-Museums in Mannheim since 2002. He studied art history, philosophy and ethnology at the universities in Mainz and Frankfurt am Main and earned his doctorate on the work of the photographer Robert Häusser. Sui is in charge of the scientific compilation of the contemporary Helmut Gernsheim Collection, for the Robert Häusser Archive and the Reiss siblings’ collection of historical travel photographs. Among others, Sui has curated the following exhibitions at the Reiss-Engelhorn Museums: “Focus on Man, Pictures of People from the photographic collection of Helmut Gernsheim” (2003), "Robert Häusser, From the Photographic Work 1938–2004“ (2006), “Robert Lebeck - Unbelievable Luck“ (2004), “To the Holy Lands – From Mecca and Medina to Jerusalem”, Photographs of the 19th Century (2006), “Set into the Word – Contemporary Lyric Poetry to Photographs by Robert Häusser” (2007), “Robert Häusser – The Diary of Moor” (2008), “World Stars of Photography: The Winners of the Hasselblad Foundation” (2008), “Robert Häusser – The Berlin Wall“ (2009). „The Birth of Photography, Milestones from the Gernsheim Collection” (2012). In this exhibition the first ever photograph "View from the Window, Le Gras" taken in 1826 by Nicéphore Niépce was shown for the first time in over 60 years in Europe and exclusively at the Reiss-Engelhorn-Museen in Mannheim.
Sui was appointed as Jury Chairman for the Hasselblad Award 2010 of the Erna- und Victor Hasselblad Foundation, Göteborg (Sweden).