John Calvin has been the subject of numerous studies, but most have focused on one aspect of his thought or a limited selection of his writings. This study of Calvin adopts a uniquely holistic approach. Randall Zachman begins with a brief biography and considers Calvin's own understanding of his ministry as a teacher and pastor. From this perspective, he surveys Calvin's writings and their place in the work of reforming the church both through the training of clergy and the instruction of the laity. Zachman then considers Calvin as a theologian. In contrast to Martin Luther, Calvin sought to balance the verbal proclamation of the Word with an emphasis on the visible manifestation of God both in creation and in Christ. This study will be of great interest to Reformed clergy and to students of the Reformation and Calvinism.