Upon returning to the UK after studying in the US, the Irish-born artist Michael Craig-Martin (born 1941) became a key figure in British conceptual art and an influential educator, linked in particular to the generation of Young British Artists, including Damien Hirst and Gary Hume. Craig-Martin's works transform recognizable objects--such as sneakers, headphones, watches and, most recently, modernist buildings--with bold color and simplified lines...