How do you present data on a map?
The best method of data presentation on the map is using colour schemes (darkest/lightest elements put on display for the eye), various shape sizes (biggest elements put on display), or a combination of the two.
What is a map that shows data called?
A cartogram (also called a value-area map or an anamorphic map, the latter common among German-speakers) is a thematic map of a set of features (countries, provinces, etc.), in which their geographic size is altered to be directly proportional to a selected ratio-level variable, such as travel time, population, or GNP.