My father, John Walker, who has died aged 84, was an art historian and art critic who wrote more than 15 books on modern and contemporary art, including Art and Outrage: Provocation, Controversy and the Visual Arts (1999) and Art in the Age of Mass Media (2001).
He was a regular contributor to art magazines and journals over the years, with that work focused mainly on the relationship between art and mass media. He was particularly interested in the impact of Vincent van Gogh, John Latham and the art collector Charles Saatchi.
