understanding art terminology
colour theory quick guide
awesome article about colour: why is facebook blue?
Collage: Collage is the sticking of bits of newspaper, letters, postage stamps, cloth, wood, photographs etc. into a pattern or onto paintings. Assemblage is 3D and usually uses more than one kind of material; collage is 2D and usually uses one kind of material. The technique is also used in paper craft. It refers, too, to the use of different types of needlework when combined in embroidery work.