This dynamic image, with its abstract skyscrapers, shop windows, and traffic-filled streets, is an exceptional example of American mid-century modernism in graphic design. Since it incorporates many of the same conceits as David Klein’s TWA poster of Times Square made that same year, it is interesting to consider which came first. The large, glass-faced building on the right side of the poster represents a brand new kind of skyscraper, like the Lever House in Midtown, the first commercial structure in New York City, built between 1950 and 1952 with glass-curtain walls.