From the Back Cover of 2nd Edition: Authentic Christianity: An Exposition of the Theology and Ethics of the Westminster Larger Catechism was originally written and delivered in more than four hundred sermons, and it is the most practical, down-to-earth, and blood-earnest systematic theology ever published. Dr. Joseph C. Morecraft, III leads us to drink deeply from the streams of church history, marshalling the testimony of the Early Church, the Protestant Reformers, and the Puritans, as well as numerous Reformed Presbyterian and Baptists scholars and writers from the nineteenth, twentieth, and twenty-first centuries.
Joseph C. Morecraft III (Th.D., Whitefield Theological Seminary) is the founding pastor of Chalcedon Presbyterian Church in Cumming, Georgia, where he has ministered for over 36 years. The author of How God Wants Us to Worship Him and With Liberty and Justice For All: Christian Politics Made Simple, Dr. Morecraft is a popular conference speaker and guest lecturer on political, historical, and theological issues. He and his wife Becky reside in Canton, Georgia.
While I haven't read the whole thing (I made it to page 684 of volume II, page 1,612 overall) what I have read has been clear and helpful. It has been formative for my understanding of theology, especially the sections "The Covenant of God" and "The Promise and Work of the Holy Spirit" in volume I. While I have decided to not read the whole thing cover to cover, I will certainly continue to use this set as an important reference in future studies.