The map on the image is a special-purpose map. This type of maps depict specific aspects of some area, be it the infrastructure, the natural resources, demographic aspects, and is only focused on one particular thing, while neglecting all other things. In this case, we have a map that shows the natural resources in Africa. More specifically, this map is showing the most important and biggest reserves on the continent. Even though it is a very simplified map, it still manages to give nice representation about the most important natural resources across the continent.
