Perspective, Viewpoint and Cubism

Perspective, Viewpoint and Cubism: "The difference between a perspective and a Cubist representation of reality can be compared to the way two people might describe the same scene to us on the telephone. Using the perspective method, the first person takes up a fixed position in front of a scene and without moving, states the shape, size, colour and position of each object in a few firm and decisive sentences. We don't receive any conflicting information and the description maintains a consistent tone. But when we ask for a description of the back or the underside of an object, our caller finds it impossible because from where they are standing these views cannot be seen. As far as they're concerned, these other views might as well not exist."