Personal correspondence includes letters between Herstand and his friends and family while he was stationed in Europe during World War II; a photocopy of a letter from Fernand L???ger certifying the dates that Herstand studied at the Atelier L???ger in Paris; and single letters and postcards from friends and artists including Joseph Beuys, Henri Cartier-Bresson, Christo and Jeanne-Claude, Malitte