n.
(from French coller , "to glue") Pictorial technique of applying printed or found materials (e.g., newspaper, fabric, wallpaper) to a flat surface, often in combination with painting.
Long popular as a pastime for children and amateurs, it was first given serious attention as an art technique by Pablo Picasso and Georges Braque in 191213. Many other 20th-century artists produced collages, including Juan Gris , Henri Matisse , Joseph Cornell , and Max Ernst . In the 1960s collage was employed as a major form of Pop art , exemplified in the work of Robert Rauschenberg .