A culture is a complex, largely interconnected whole that consists of the knowledge, belief, art, law, morals, customs, skills, and habits learned from parents and others in a society. Culture is the primary adaptive mechanism for humans.
Richard was considered the American new wizard of optical -art, and was not well-known but was important in the further development of op-art. Born in Erie, Pennsylvania in 1930, Richard enjoyed art at an early age, and was encouraged by his father.
image source http://www.newworldencyclopedia.org/entry/Op_art. This is an example of op art, a movement that became popular in the 1960's. Op art plays with visual perception and often, color combinations or patterns that can be very difficult to look at and focus on. It is obvious that the magenta square is emphasized in the composition, and is definitely the focal point.