David Hockney is one of the most influential British artists of the 20th century. He has produced work in almost every medium - painting, drawing, stage design, photography and printmaking - and has stretched the boundaries of all of them. His groundbreaking Secret Knowledge: Rediscovering the Lost Techniques of the Old Masters is published by Thames & Hudson, as are his books in partnership with Martin Gayford: A Bigger Message (2011), A History of Pictures (2016) and Spring Cannot be Cancelled (2021). Born in 1937, he continues to create and exhibit art, and to inspire enormous affection and admiration worldwide. Martin Gayford is a writer and art critic. His books include Man with a Blue Scarf (about the experience of being painted by Lucian Freud), Modernists and Mavericks, Shaping the World (with Antony Gormley), Love Lucian: The Letters of Lucian Freud, 1939-1954 (with David Dawson), and Venice: City of Pictures, all published by Thames & Hudson.