"The translations are accurate and clear, and the introductory essay does a wonderful job of distilling complicated theological controversies into terms that are comprehensible by an undergraduate audience. The edition's greatest asset, though, is the range of texts that it includes. By including works by Luther's Catholic opponents and his erstwhile allies, this edition demonstrates that <i>On the Freedom of a Christian</i> represented not only a high point in Luther's thought, but also a starting point in a debate that spanned Christendom and had massive social and political implications." —Philip Haberkern, Boston University

"An excellent introduction to both Luther's thought and the theological controversies that tore apart sixteenth century Europe. Like all good historical introductions should aspire to do, Helfferich's collection concisely displays the contingency and complexity of this epoch. [T]he selected texts . . . all contribute to the understanding of the period by serving as representations of crucial positions. The cumulative effect is an invitation to the reader to delve deeper into the primary material and to gain a better view of this strange and strangely familiar world." —Kye Barker, UCLA, in <i>Comitatus</i>