Featured Image: Poster, Traffic Symbols, circa 1969; Designed by the Office of Henry Dreyfuss (South Pasadena, California); Collage on grey wove paper; H x W: 27.9 × 35.6 cm (11 × 14 in.); Henry Dreyfuss Archive, Cooper Hewitt, Smithsonian Design Museum, 1972-88-1-10; Photo by Matt Flynn; Image © Smithsonian Institution
