Cartogram Map

Cartogram maps are not so concerned with geographic accuracy of features such as the size and area of the land being mapped as they are about clearly displaying data. The map below is a cartogram map whose purpose is to display the allotment of electoral votes. This data is based off of population, therefore, though it is known that the District of Columbia is obviously not the same size as say, Montana or South Dakota, it is represented as such on this map because the data is the most important feature being displayed in cartogram maps and in this case, the population data is what takes importance in the matter of election statistics.

http://www.cartisan.com/map_resources/map_types/cartogram1.html