Common touch

It’s difficult to believe that the golden boy of British art — as David Hockney remained for so many years — now has more than half a century of work behind him, or that he will celebrate his 70th birthday next summer. His technical versatility and immense skilfulness have seen him through many different guises along the short path from faux-naïf to sophisticate, including print-maker, photographer and set-designer, inspired draughtsman and impassioned theorist, but it is as a painter that he will surely be judged, when the verdict of posterity eventually arrives.