Schaff begins his history with an examination of the preparation for Christianity in Judaism and the heathen world and the life and resurrection of Jesus Christ. The 8 volume series concludes with a general introduction to modern church history and a thorough analysis of the productive period of the Reformation, tracing the Protestant movement in Germany and Switzerland to the close of the 16th century. There are footnotes, charts, maps and each volume contains its own alphabetical index.
Schaff taught church history at German Reformed Seminary in Mercersburg, Penn., and Union Theological Seminary in New York. He was involved in the formation of the Evangelical Alliance, the revision of the English Bible (the Revised Version), and the Alliance of the Reformed Churches. Schaff was founder of the American Society of Church History.