I have been perusing Habitats of Africa: A Field Guide for Birders, Naturalists, and Ecologists by Ken Behrens, Keith Barnes and Iain Campbell, a recently published book that is an expanded and enriched version of the African chapters of the earlier published - and also quite excellent - Habitats of the World: A Field Guide for Birders, Naturalists, and Ecologists by Iain Campbell, Ken Behrens, Charles Hesse and Phil Chaon.
I am also currently reading King Leopold's Ghost: A Story of Greed, Terror and Heroism in Colonial Africa by Adam Hochschild.