The Oxford Handbook of Global Religions

The worlds religions are becoming increasingly globalized. One can no longer equate particular faiths with corresponding geographic locations. Islam is as much a south or southeast Asian religion as it is a middle eastern one. And Christianity is growing by leaps and bounds in Africa, Asia, and Latin America, while it declines in Europe. In addition to these major population shifts, small communities of adherents of every religion are scattered across the globe, where they mingle with and adapt to local cultures.