Bridget Riley, Movement in Squares, 1961
Op-art (optical-art) is stark, often minimal art that plays on optical illusion. While the idea of optical illusion art might immediately make you think of those Magic Eye books from the 90's, there is no hidden picture in these that you need to cross your eyes to see. But rather when simply viewing the art, looking at the canvases, the viewer gets the impression of movement, warping or flashing.
If you think of op-art and imagine some vague notion of a 60's mod, psychedelic aesthetic, you are on the right track. Much of this art was produced during the early 60's and did later get co-opted by the mainstream at large in various commercial contexts. Bridget Riley, an original op-artist tried to (unsuccessfully) sue a company for using her art as fabric design.


