The perfect books for the true book lover, Penguin's Great Ideas series features twelve more groundbreaking works by some of history's most prodigious thinkers. Each volume is beautifully packaged with a unique type-driven design that highlights the bookmaker's art. Offering great literature in great packages at great prices, this series is ideal for those readers who want to explore and savor the Great Ideas that have shaped our world. Regarded as the father of Existentialism, Kierkegaard transformed philosophy with his conviction that we must all create our own nature; in this great work of religious anxiety, he argues that a true understanding of God can only be attained by making a personal "leap of faith."