Jacob Baal-Teshuva, born 1929, is author, critic and independent curator of museum shows. He studied at the Hebrew university in Jerusalem and the New York University. His numerous publications include works on Marc Chagall, Alexander Calder, Jean-Michel Basquiat, Andy Warhol and Christo and Jeanne-Claude. Jacob Baal-Teshuva lives and works in New York and Paris.