Burri Alberto

 1953) were made of coarse cloth stitched together After 1956 he employed thin pieces of burned wood and layers of polyethylene in which holes were burned, creating a rich spatial network within the layers of plastic The humble and sometimes crude materials used in these works contrast effectively with their elegant designs, and the easily destroyed materials form a perforated network over an impinging background field In his series of metal works done after 1959, however, the solid material completely encloses the background field, although the metal is hammered from behind as if the imprisoned field were trying to break out