The Bottom Billion is a good book about the factors that make the poorest regions in the world, of which Sub-Saharan Africa is the largest block. https://en.wi

The Bottom Billion is a good book about the factors that make the poorest regions in the world, of which Sub-Saharan Africa is the largest block. https://en.wikipedia.org/wiki/The_Bottom_Billion https://en.wikipedia.org/wiki/The_Bottom_Billion