This is a cartogram that represents consumption values of countries. The area of the countries is stretched to show relative amount of consumption.http://pthbb.org/natural/footprint/
This is a flow map that shows migration patterns to California and New York. The amount of people migrating to these areas are shown by the thickness of the lines connecting the states. It can be inferred that more people move to New York from Eastern states, while California attracts people from all over the U.S.
This map shows burglary statistics in the city of Denver. The shades indicate an increase, decrease, or no change in burglary rates for 2002. The values of how much of a change occurred are displayed in the neighborhoods.