Timothy O'Connell has done a great service in providing a popular textbook in contemporary Catholic Moral Theology. This is the first textbook written in the United States which strives to incorporate the recent developments in moral theology. This classic introduction to moral theology in the Roman Catholic tradition speak clearly to anyone interested in understanding what it means to live the Christian life. Beginning with a concise definition of the roles of revelation and interpretation in the formation of moral theology, O'Connell explores the concept of a moral person, the shape and dynamics of a moral world, and the implications not only for the individual Christian but for the community as a whole.