Proportional Symbol maps are used to display differing quantities of a specific item done by varying the size of a given symbol. The following maps shows cow sales in Maryland.
Choropleth maps are maps that use shading or distinct patterns to distinguish data. They are good to show quick, differing results for an area.
Environmental Sensitivity maps are used to express several different quantities for several different items. These maps have more going on than other maps and get across large amounts of information.
Dot Density maps are used to show varying quantities with dots that are given a specific meaning. Dot density maps are more shown for effect than for intensive data studies.
Isopleth maps are used to show areas that have similar qualities such as elevation, rainfall and other items. The map uses lines or color to distinguish the areas. Below is an example of such.
