This book has been written for three purposes. First, to provide the Orthodox reader with a competent overview of the history of Protestantism and its major traditions, from its beginnings in the 16th century to the present day. This overview relies heavily upon the Reformer s own words as well as the creeds of various Protestant faiths, in order to avoid misrepresentation and caricature. Second, to acquaint Orthodox and non-Orthodox readers with a narrative of the historical relations between the Orthodox East and the Protestant West. Finally, to provide a summary of Ortho- dox theological opinion on the tenets of Protestantism.