David Hockney was born in Bradford in 1937. Better known as a painter he revived a technique that developed from developed from Cezanne to Picasso. The basic assumption was that we do not see things as if they were flat photographs but as a series of different impressions that the brain then puts together as a whole. His first "Joiners" he formed from Polaroid photos that he assembled as composites. Joiners also permit a means of communicating change in time and space on a two- dimensional surface.