Maximus the Confessor (c. 580–662) stands as one of the most profound and significant figures in the history of Christian theology. Living during a turbulent period in the history of the Byzantine Empire, Maximus' theological contributions were shaped by the intense Christological and doctrinal controversies of his time. His legacy, however, extends far beyond his historical context, influencing generations of theologians and shaping the Orthodox Christian tradition. This book will provide a deep analysis of the historical background, key theological ideas, and important sources that define Maximus' thought, exploring his significance within the broader Christian theological landscape.