op art
op art is a art movement.
Also recorded as optical art.
Overview
The record gives 1960 as its date of establishment or first appearance. VALÉORINE records this subject so that lots referring to it can be described consistently.
In detail
style of visual art that uses optical illusions
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Op art”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q182331: op art
Consult the source