David Hockney (1937–2026) was one of the most influential British artists of the 20th century. He produced work in almost every medium – painting, drawing, stage design, photography and printmaking – and 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). Thames & Hudson also published the catalogue of his blockbuster exhibition at the Fondation Louis Vuitton in 2025. Martin Gayford is a writer and art critic. His books include Man with a Blue Scarf (in which he recounts the experience of being painted by Lucian Freud); Modernists and Mavericks; Spring Cannot be Cancelled, with David Hockney; Shaping the World: Sculpture from Prehistory to Now, with Antony Gormley; Love Lucian: The Letters of Lucian Freud, 1939–1954, with David Dawson; and How Painting Happens, all published by Thames & Hudson.