While Mario Testino is known the world over for his mastery of photography, his story as an art collector and philanthropist is yet to be told. This September, Testino will take over Sotheby’s London galleries, with an immersive exhibition and sales of over 400 works, which form part of his personal collection. All proceeds from the auction will go toward the expansion of Testino’s not-for-profit Museo MATE in Lima to promote and support culture in Peru.  Watch our video for a first look at the collection, which brings together many of the artists Testino most admires, and whose visual language has helped to inform his world and vision.