"By the time we arrive at Tony Godfrey's CONCEPTUAL ART, we find that controlled dangerous substances have become art, as in Hlio Oiticica's MAILERYN (1973). But Godfrey's book enters 'Anti-Art Gestures in Early Modernism' via Duchamp and Dada, and we must ask ourselves, What happened to the intervening 50 years? It is conceptual art that exposes how decidedly 'retro' the art of the last half of the 20th-century has been. There are new media, such as neon signs and holographics, and advertising, but the message remains the same."Godfrey, Tony is the author of 'Conceptual Art', published 1998 under ISBN 9780714833880 and ISBN 0714833886.