Collage, meaning to glue, is a form of assemblage. Collage may include any organic or inorganic materials glued together and/or in combination with various paint media such as acrylic or oil paints, inks, markers, charcoal, pastels and more.
Collage became a distinctive form of art in the early 20th century, though collage has been done since the advent of paper in China around 200 B.C. Georges Braque first used simulated oak-grain wallpaper cuttings with his charcoal drawings. Pablo Picasso immediately followed using collage techniques in his paintings.
Decoupage, photomontage, and digital are other forms of collage.