Refers to drawings, or works in another medium, that are made using oblique perspective, which is a system of linear perspective in which rectangular objects are set at an angle to the picture plane rather than parallel to it. Oblique perspectives may be two-point perspectives, three-point perspectives, or they may use another scheme. For drawings that use oblique projection, where parallel lines remain parallel rather than converging as they recede in space, use "oblique projections."
