“Lettrism: A phenomenon since the 1950s, lettrism is the juxtaposition of letters, words, signs, and pictographic symbols with visual effect as the primary concern and with the meaning (if any) of secondary importance. Concrete poetry is a form of lettrism, but here the verbal meaning is as important as the design. Also called typewriter art.”
Excerpted from: Diamond, David G. The Bulfinch Pocket Dictionary of Art Terms. Boston: Little Brown, 1992.