Collage comebines pre-existing images to create new meanings, by cutting out, overlaying, or juxtaposing different images together.
Collage artists for social commentary: Johnn Heartfield, Peter Kennard, Hannah Höch, Martha Rosier.
Photomontage: a combination of several photographs joined together for artistic effect or to show more of the subject than can be shown in a single photograph.
OCA Art Blog 