Generating my own collages prompted me to notice The New York Times > Arts > Art & Design > Making Art From Bits and Pieces:

In rescuing and dignifying scraps of local life - a matchbook from a bar, someone's tossed-off photo-booth portrait - Mr. Evans can be thought of as a historical preservationist, operating on an unusually intimate scale. Yet his own moods seem reflected in how he handles the materials. In one day's collage, ticket stubs and candy wrappers explode like fireworks against an ebulliently bright background. In another, juxtaposed images of Hitler and Oliver North make a grim political statement.