The document provides information about op art and key artists in the movement. It discusses how op art uses optical illusions, perspective, and movement to create the impression of hidden images or flashing. Victor Vasarely is cited as a leader in the field, known for works like his 1937 piece "Zebras" that experimented with textures, perspective, shadow, and light. The document also mentions Bridget Riley and the Bauhaus school's influence on the development of op art.