Staged photographs that require sets, actors, costumes and the kind of techniques normally associated with film production.
Straight photographs of everyday things that the artist has observed. They often depict inanimate objects or overlooked spaces.
These pictures may be reconstructions of events that Wall has witnessed or they may be documentary photographs that involved a small degree of intervention by the artist. The resulting pictures occupy a middle ground between fiction and documentary.
Many of Walls pictures feature someone speaking, a presence that implies a recounting of a story or a subjective experience in contrast to the silence of the photograph.
A construction, often used for advertising purposes, of an photographic image mounted in a metal-edged box with florescent tube lighting behind it to lend it a hyper-real glow. Walls colour photographs are transparencies mounted in light-boxes.
Since 1991, Wall has created many of his photographs with the aid of digital montage. This technique involves using a computer to assemble separate photographs into a single, coherent picture.