This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book talks about the changing nature of the debate on the English Reformation. It discusses the history of the sixteenth-century Reformation as written by modernist professional historians of the later nineteenth, twentieth and twenty-first centuries. The book examines the work of certain important later writers who cared about the issues raised by the Reformation and saw them as deeply relevant to their own times. It explains why the debate mattered to the later writers and not simply what the debate was. The book is concerned with the historiography of the Reformation as seen through the eyes of men who were contemporaries of the English Reformation-William Tyndale, John Frith, Margaret Campbell Barnes, John Foxe and John Bale.