Univariate Choropleth (39)

http://www.clearlyandsimply.com/clearly_and_simply/2009/06/multicolored-choropleth-maps-with-excel.html
This Univariate Choropleth, pictured above, shows the different terms for soda, or pop, across the U.S. It is the only variable shown on this map, which is what gives it its name.