The vast majority of people in many sub-Saharan African nations are deeply committed to the practices and major tenets of one or the other of the world’s two largest religions, Christianity and Islam. Large majorities say they belong to one of these faiths, and, in sharp contrast with Europe and the United States, very few people are religiously unaffiliated. Despite the dominance of Christianity and Islam, traditional African religious beliefs and practices have not disappeared. Rather, they coexist with Islam and Christianity. Whether or not this entails some theological tension, it is a reality in people’s lives: Large numbers of Africans actively participate in Christianity or Islam yet also believe in witchcraft, evil spirits, sacrifices to ancestors, traditional religious healers, reincarnation and other elements of traditional African religions.