Brian Wallis, deputy director of exhibitions and collections and chief curator at the International Center of Photography is leaving he organization at the end of the month.

Wallis joined ICP in 1999 and during his tenure, the museum has presented more than 150 exhibitions and acquired more than 20,000 photographs. His curatorial program has focused on contemporary photography while examining the history of photojournalism and documentary photography.

The many exhibitions Wallis curated at the ICP include Larry Clark (2005), America and the Tintype (2009), and Weegee: Murder is My Business (2012). He also co-curated Strangers: The First ICP Triennial of Photography and Video and was involved in the 2007 recovery of the Mexican Suitcase, a long-lost cache of 4,300 negatives made during the Spanish Civil War by Robert Capa, Gerda Taro, and Chim.

Wallis will work as a curator for the Walther Collection, where he is organizing The Order of Things: Photography from the Walther Collection, which will open at the Walther Collectin in Neu-Ulm/Burlafingen, Germany, in May.