David Hockney works with photography, or, more precisely, photocollage. Using varying numbers of small Polaroid snaps or photolab-prints of a single subject Hockney arranged a patchwork to make a composite image. Because these photographs are taken from different perspectives and at slightly different times, the result is work which has an affinity with Cubism
His photomontage workk appeared mostly between 1970 and 1986. He referred to them as "joiners". He began this style of art by taking Polaroid photographs of one subject and arranging them into a grid layout. The subject would actually move while being photographed so that the piece would show the movements of the subject seen from the photographer's perspective.