Editing Op art (section)

{{short description|Art movement}}
{{distinguish|pop art|plop art|OOPArt|OOPARTS (disambiguation)}}
{{For|"operational art", as used in military terminology|Operational level of war}}
[[Image:Riley, Movement in Squares.jpg|thumb|220px|alt=Black and light grey checkered pattern of squares that is horizontally shrunk at one third to the right side of the image|''Movement in Squares'', by [[Bridget Riley]] 1961]]

'''Op art''', short for '''optical art''', is a style of [[visual arts|visual art]] that uses [[optical illusion]]s.<ref>Artspeak, Robert Atkins, {{ISBN|978-1-55859-127-1}}</ref>

Op artworks are [[Abstract art|abstract]], with many better-known pieces created in black and white. Typically, they give the viewer the impression of movement, hidden images, flashing and vibrating patterns, or swelling or warping.