Another rather recent infographic from Le Monde’s Philippe Rekacewicz is this, called Useful Africa.
One of the key problems for African development is its lack of infrastructure. Here we see the proposed and under-construction projects that will hopefully raise Africa up from its current state. But the infrastructure is only as good as it is economically useful. Hence the connection between those same infrastructure projects and areas of mineral or hydrocarbon reserves.
This is an example of where a map is incredibly useful, as opposed to say a choropleth that shows which countries in Africa have the highest concentrations of oil reservers, of natural gas reserves, and of mineral reserves. The geography here is key to understanding the transport links between major population centres, ports and points of distributions, and the raw materials to be exported—if not processed and refined.