Cartograms

http://www.treehugger.com/culture/atlas-of-the-real-world-the-planet-as-youatmve-never-seen-it.html

Cartograms are maps that have distorted geometry in order to show the information of the variables. They maintain political boundaries while indicating the weight of a variable. The cartogram above shows world meat consumption. It can be seen that Africa has shrunk dramatically, while Japan and Britain have grown.