Cubism

Cubism was an early 20th century art movement which was begun in
European painting and sculpture. Pablo Picasso and Georges Braque are
main innovators of it. Although this movement appeared in many fields
such as music, it is mainly known as the style of paintings.

In this kind of artwork, objects are broken and re-assembled in an
abstracted form - The artist depicts the object from a multitude of
viewpoints instead of the ordinary one viewpoint.

So, these below pictures are the notable examples of Cubist artworks.

Ambroise Vollard by Pablo Picasso

Woman with guitar, Georges Braque

References:
http://en.widipedia.org/wiki/Cubism
http://en.wikipedia.org/wiki/Cubismhttp://en.wikipedia.org/wiki/Image:Braque.woman.400pix.jpg