Martin Gayford is an art critic for The Spectator. His books include Man with a Blue Scarf  (in which he recounts the experience of being painted by Freud),  Modernists and Mavericks, Spring Cannot be Cancelled  (with David Hockney),  A History of Pictures  (with David Hockney) and Shaping the World  (with Antony Gormley), all published by Thames & Hudson.