CARTOGRAM

This map is a cartogram using population as the variable to determine the size and shape of each county in the Contiguous U.S. The distorted result is overlaid with outlines representing the actual size, shape and location of each county. This is a pretty abstract illustration of the U.S. but it certainly gives you a good picture of how the counties compare to each other in population.

Link to website source:
http://issrweb.asu.edu/services/gis/sample-maps.html