With over twenty volumes, the Nicene and Post-Nicene Fathers is a momentous achievement. Originally gathered by Philip Schaff, the Nicene and Post-Nicene Fathers is a collection of writings by classical and medieval Christian theologians. The purpose of such a collection is to make their writings readily available. The entire work is divided into two series. The first series focuses on two classical Christian theologians--St. Augustine and St. John Chrysostom. This particular volume contains Augustine's On the Holy Trinity and treatises on morality and doctrine. The Nicene and Post-Nicene Fathers is comprehensive in scope, and provide keen translations of instructive and illuminating texts from some of the greatest theologians of the Christian church. -Tim Perrine, CCEL Staff Writer