Thematic maps are maps that show relationships of different categories of for example people. In the map above this thematic map shows the party of control in each governor's office in the contiguous 48 states in the U.S. It does this by using state boundaries lines to distinguish categories as well as using color codes being red for Republican and blue for Democratic. Another distinction of Thematic maps is that they do don't show any physical features of the land they are portraying they are simply used to help viewers distinguish between categories.
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