Op art is a form of abstract art that gives the illusion of movement by the precise use of pattern and color or in which conflicting patterns emerge and overlap. Op artists put colors, shapes, and patterns together to make the artwork look like it is moving.
One artist who was famous for her optical art was Bridget Riley. She used many curved lines to make her work appear to be dancing. Another famous optical illustion artist was Frank Stella. Unlike the curvy lines of Riley's work, Stella was known for his hard-edges. He used many stripes that fooled the eyes into seeing movement.
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