This document provides an overview of West and Central Africa based on a World Geography textbook chapter. It covers the Sahel region, coastal countries, Nigeria, and Central Africa. Key points include: the Sahel's history of trade empires and current environmental challenges; how coastal location encouraged trade but also economic struggles since independence; Nigeria's varying regions defined by settlement patterns and effect of military rule; and how the Congo River aids Central Africa but the region also faces political turmoil like in the Democratic Republic of the Congo.