This investigation of religion by greatest psychoanalyst of the twentieth-century explores the role faith can take in the life of man, what it can mean to us and why as a species we are inclined towards it. Throughout history, some books have changed the world. They have transformed the way we see ourselves - and each other.

They have inspired debate, dissent, war and revolution. They have enlightened, outraged, provoked and comforted. They have enriched lives - and destroyed them.

Now Penguin brings you the works of the great thinkers, pioneers, radicals and visionaries whose ideas shook civilization and helped make us who we are.