Advertising campaigns are a critical part of any successful American presidential election. As you can see below, U.S. presidential races have yielded some interesting campaign posters.
From hand-etched, antique lithographs to posters inspired by the modernism of the "Mad Men" advertising era, these designs are anything but boring.
Presidential Campaign Posters, a 2012 publication of the Library of Congress, examines these and other posters and their effect on the electoral vote.
Also on HuffPost: