These are not conspiracy theories – but the genuine beliefs of some of the world’s major religions. In the name of religion, millions have been killed, and millions have been saved. Political dynasties have been built on the back of religious belief, or been destroyed because of them. The history of religion is one of tyranny, betrayal, sacrifice, generosity and faith: where the same ‘facts’ have often brought believers to dramatically different conclusions. From religions which have a multiplicity of gods, to religions which have no god at all, God: A User’s Guide demonstrates how the vast majority of the world’s religions did not develop in isolation, but were influenced by already existing belief systems. We have far more in common than you might think.