Four Maps of Different Mapness

A choropleth map is a thematic map in which areas are shaded or patterned inwhich shows to the measurement of the statistical variable being displayed on the map, such as population density or per-capita income.

The proportional symbol technique uses symbols of different sizes to represent data associated with different areas or locations within the map. For example, a disc may be shown at the location of each city in a map, with the area of the disc being proportional to the population of the city.

A dot distribution map is as a map type that uses a dot symbol to show the presence of a feature or phenomenon. Dot maps rely on a visual scatter to show spatial pattern.

Isarithmic maps, also known as contour maps, depict smooth continuous phenomena such as precipitation.