Hans Ulrich Obrist is a Swiss-born curator, critic, and art historian, and the artistic director of the Serpentine Galleries in London. His many books include 140 Artists' Ideas for Planet Earth; Lives of the Artists, Lives of the Architects; Ai Weiwei Speaks; Ways of Curating; and A Brief History of Curating. Larry Warsh has been active in the art world for more than thirty years as a publisher and artist-collaborator. He is the editor of many books, including Abramovi-isms, Basquiat-isms, Haring-isms, Holzer-isms, Ono-isms, Warhol-isms, and Weiwei-isms (all Princeton).