Augustine of Hippo is one of the greatest thinkers and writers in the Western world. After becoming a Christian he was made bishop of Hippo in Africa, where he was influential in civil and church affairs. His more than 100 books, 200 letters, and 500 sermons have left a lasting impact on Western philosophy and culture. His classic and best-selling works include The Confessions, The Trinity, The City of God, and Teaching Christianity.