Correspondence is primarily professional, with scattered personal correspondence, and provides suppemental documentation of all aspects of the artist's career, including gifts, sales, loans, and consignments to galleries and museums such as Fischbach Gallery; John Weber Gallery; Lori Bookstein Fine Art; Galleria Bonomo, Bari; Art Front Gallery, Tokyo; Galerie Bonnier, Stockholm; Galerie Bernier, Athens; Kalfayan Gallery, Athens; Galerie Citronne, Poros; Konrad Fischer Gallery, Berlin; Daniel Marzona Gallery, Berlin; The American Academy of Arts and Letters; The Metropolitan Museum of Art; The Museum of Modern Art; the Onassis Cultural Center; the Museum of Contemporary Art San Diego; the Rose Art Museum, Brandeis University; the Smith College Museum of Art; the Dallas Museum of Art; the National Museum of Contemporary Art, Athens; the State Museum of Contemporary Art, Thessaloniki; and the Benaki Museum, Piraeus.