Cubism

Cubism was a 20th century avant-garde art movement, pioneered by Pablo Picasso and Georges Braque. In cubist artworks, objects are broken up, analyzed, and re-assembled in an abstracted form—instead of depicting objects from one viewpoint, the artist depicts the subject from a multitude of viewpoints to represent the subject in a greater context.

http://en.wikipedia.org/wiki/Cubism