Primarily practiced in China and other parts of southeast Asia, Taoism is part philosophy, part religion that emphasizes living in harmony with the Tao (the Way). These books help explain.

Tao Te Ching

Jesus, Buddha, Krishna, Lao Tzu: The Parallel Sayings: The Common Teachings of Four World Religions

Taoism for Dummies

The Tao of the Craft

Every Day Tao