Collage is an art form that involves pasting together various materials such as paper, fabric, photographs, and other found objects to form a new image or artwork. It began in the early 20th century when cubist artists Pablo Picasso and Georges Braque began gluing materials onto their canvases. There are several types of collages including paper collage, fabric collage, and mixed media collage which combines different materials. Common materials used in collage include various papers, fabrics, photographs, and found objects.