Cartogram

Cartograms take information about locations and distort the actual sizes of them, in order to depict a visual statement of a variable related to the locations. This cartogram illustrates GDP per capita in 2000 measured in Purchasing Power Parity units. Other subjects of cartograms could include population, income, resource use, election distribution information, distance, and many others.

http://maps.grida.no/library/files/world_economy_cartogram_001.jpg