Martin Gayford is art critic for The Spectator and the author of acclaimed books on Van Gogh, Constable and Michelangelo. He is the author of Man with a Blue Scarf, Rendez-vous with Art and A Bigger Message. He has collaborated with David Hockney on A Bigger Message: Conversations with David Hockney and A History of Pictures, and has co-written a volume of travels and conversations with Philippe de Montebello: Rendez-vous with Art.