Cartogram
A map in which some mapping variable is substituted for land area in such a way that the political unit with the greatest value for some type of data is represented by the largest relative area on the map
A cartogram is a type of map that distorts certain geographic areas to reflect data other than land area, such as population or economic activity. This is achieved by resizing and reshaping countries, states, or regions based on the variable being represented. For example, a cartogram of the world may show countries with larger populations as larger than countries with smaller populations, even if those larger countries have smaller land areas.
Cartograms are useful for visualizing data in a way that allows for more accurate comparisons between regions. They can be used to highlight disparities between neighboring regions or to show how certain geographic areas contribute more to a certain variable than others.
There are different types of cartograms, including contiguous, non-contiguous, and unclassed cartograms. Contiguous cartograms preserve the shape of the geographic regions being represented, while non-contiguous cartograms can modify the shape of these regions to make the map more visually appealing. Unclassed cartograms, on the other hand, do not use a predefined set of regions or classes, but instead, groups the data into clusters based on the density of the variable being mapped.
Cartograms are often used in journalism, academia, and public policy to help people understand complex data sets in a simple and straightforward way.
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