This landmark edition combines Berkhof's standard, systematic treatment of the doctrines of the Reformed faith - his magnum opus - with his Introduction to Systematic Theology . Written in a scholarly yet simple style, and completely outlined and indexed, the work includes a thorough bibliography, and questions for further study follow each section. A new preface by Richard A. Muller explains the relation and importance of Berkhof's prolegomena to the rest of his systematic theology.