His first exhibitions in 1937 focused on his collages. In the 1960s Kolář first combined painting and poetry but he gradually turned completely to experiments in visual art. In his work he used a scalpel to cut pictures out of magazines. He produced colors in his collages by gluing on printed fragments of paper from various different sources.
"Like most great artists of the past century, Kolář was both an anarchist and a reactionary. In order to “make it new,” the artist must systematically reject every aesthetic tendency that’s come before; the artist can either accomplish this task via exclusion or destruction. Witnessing first-hand the steady self-destruction of European civilization throughout his life, it seems only natural that Kolář would go the latter route – picking through the debris and disfiguring all that he came across, granting his objects a novel significance that certainly would’ve baffled their original creators." Travis Jeppesen.Wikipedia