The first edition of this volume was written between 1953 and 1956, and the more than three decades since that time have witnessed an exceptional outburst of new research and fresh interpretations. Thus it has unquestionably become desirable to offer to readers and students a revised version of the Reformation story. Perhaps the volume should have been replaced by a totally new one, but so drastic a step was neither feasible nor yet, as it turned out, necessary. The revision was undertaken in part by the original contributors: all survivors have had the opportunity to review and where necessary rewrite their chapters. Several pieces contributed by authors no longer with us have been replaced or rewritten by living scholars. For one chapter (XVII), which the intended author’s ill health had caused to be replaced by a short and sadly inadequate note from the editor’s pen, an expert hand has now been found. In the course of the operation, it became apparent that the bulk of the volume has survived the accidents of ageing remarkably well: we feel able to put this moderately revised version before the reader with a good heart.

As a matter of fact – such things will happen – the passage of time and labour has helped to justify some of the interpretations which in between appeared to be called in much doubt. Thus work on Luther himself, while placing him more carefully within his medieval inheritance, has also reemphasized his predominant concern with matters spiritual, contrary to occasional efforts to show that he was pursuing social and political ends.