Nominal Area Choropleth Map

https://courseware.e-education.psu.edu/courses/geog482/policies.shtml

Above is referred to a Nominal Area Choropleth map, this map type is a thematic map that is utilized for displaying areal data.  As in ordinance with typical choropleth maps, colors and shading are used in order to help the audience view and understand the data being displayed.  Nominal Area maps are ideal for comparison purposes, above is displaying minority groups with the highest population per state.