A cartogram is a map in which some thematic mapping variable – such as travel time or Gross National Product – is substituted for land area. The geometry or space of the map is distorted in order to convey the information of this alternate variable. There are two main types of cartograms: area and distance cartograms. This cartogram shows Open Europe estimate of total European Union net budget expenditure in euros for the whole period 2007-2013 per capita, based on Eurostat 2007 population estimates.
http://en.wikipedia.org/wiki/File:EU_net_budget_2007-2013_per_capita_cartogram.png
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