A tale of two exhibitions: the first examination of the complementary practices of lifelong friends Yves Klein and Arman In 1958, Yves Klein (1928-62) held an exhibition in Paris' Iris Clert Gallery titled Le Vide ("The Void") in which he removed all of the art from the walls and display cabinets and repainted the white space. Two years later, Klein's close friend and colleague Arman (1928-2005) occupied the same gallery...