Artist David Hockney’s enduring legacy

David Hockney, who died on 11 June, aged 88, was never shy about experimenting with technology. In April 2020, then almost 83, he was interviewed by The Spectator's art critic, Martin Gayford, saying about his iPad that “I was just drawing on this thing I'm talking to you on.”In his “provocative” book Secret Knowledge, published in 2006, Hockney suggested that old masters, such as Vermeer, had used optical aids in their paintings, says Michael Prodger in The New Statesman