As the world becomes more modern, it is not becoming more secular. Instead, on the street and in the corridors of power, religion is surging. As "God is Back" shows, for better or for worse, faith is on the increase - fuelled by an American-style model of personal, customer-driven, aggressively marketed religion. Shining a light on this huge, hidden world of faith, from Californian megachurches to exorcisms in Sao Paulo, from China's aspirant middle-class Christians to mosques in Nigeria, this book shows that if you want to understand the modern world, you cannot afford to ignore God - whether you believe in Him or not.