Athanasius was a fiery and controversial bishop from Egypt, driven from his See no less than five times. Yet, his work served as a keystone to the settlement of the central disputes of the fourth century, from the Trinitarian and christological debates at Nicaea to the formulation of the divinity of the Holy Spirit. In this volume, Thomas G. Weinandy, OFM, Cap., and Daniel A. Keating introduce readers to this key thinker and carefully illuminate...