Applied art commercial art print illustration by Norman Duenas titled "A Butterfly Effect." I really love the artists combination of nature with the human figure/skull and the depiction of a clock. It gives a great sense of the passage of time.
Color Wheel (Moses Harris, Moses Harris's chart was the first full-color circle. The 18 colors of his wheel were derived from what he then called the three 'primitive' colors: red, yellow and blue. At the center of the wheel, Harris showed that black
Wallenstein / World System Theory: theory originated by Immanuel Wallerstein and illuminated by his three- tier structure, proposing that social change in the developing world is inextricably linked to the economic activities of the developed world