Already They ' re Calling It The Psychological Games In Mexico ' s capital , people are already calling it the psychological games . They have probaly seen some of the most eyeball searing op - art posters which announce the forthcoming 1968 Olympic Games . With their curves and whirls , which seem to flicker and dance , the posters certainly succeed in their purpose to assault the eye . These posters , are flowing from a palatical home on the southern side of Mexico City . Using the office home of Ramirez Vazquez , head of the Olympic Organizing Committee , as their workshop , Mauel Villazon , Director of the Olympic Design Department , and his young designers , certainly came up with some sizzlers 20th August 1967