David Hockney is the most famous living British artist. And he is arguably one of the more famous American artists as well. Emerging from the north of England in the 1960s, he made quite a splash in Swinging London as a portaitist, and went on to make a even bigger splash in Los Angeles when he moved there in the 1970s. His figurative paintings of the 1970s and 1980s captured the zeitgeist of West Coast living, while he also explored new avenues by...