When it uses photographs, this method of sticking various images on one surface is called "photomontage"
[DOC] [TLE] Collage - Wikipedia [PAR] Collage is a technique of an art production, primarily used in the visual arts, 
where the artwork is made from an assemblage of different forms, .... Collages 
produced using a similar, or perhaps identical, method are called etrcissements 
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