In An Introduction to Mesopotamian Religion Tammi J. Schneider offers readers a basic guide to the religion of the peoples living in the region of the Tigris and Euphrates Rivers from the beginning of the Bronze Age to the time of Alexander the Great and Darius III. Drawing from extant texts, artifacts, and architecture, Schneider reveals a complex, fluid, and highly ritualized polytheism and describes both its intriguing pantheon of deities and the religious experience of the people who spent their lives serving and appeasing them.