Tryntje Helfferich is Associate Professor of History, The Ohio State University at Lima. She has edited and translated Luther's On the Freedom of a Christian (2013) and The Thirty Years War: A Documentary History (2009) for Hackett.

"[Helfferich's] translations are clear and easy to read and couched in contemporary English that is appealing to the reader. The introductions to each document are informative and effective, sketching out each text's major themes, and placing the document into a larger context. The information provided in the notes is helpful, particularly the references identifying Scriptural passages to which Luther refers. The book features a balanced assortment of Luther's works, including some of his most important and well known works, as well as some of his lesser known (or, at least, lesser read) writings. The collection reflects the broad range of subjects that Luther addressed during his lifetime and, since the documents are arranged in chronological order, it provides the reader with the opportunity to see how Luther’s thought developed. The thematic table of contents is extremely helpful as it identifies for the reader in which writings Luther addressed a particular topic. The collection of documents, then, is valuable in that it allows readers to explore both the breadth of Luther's work as well as to engage a particular aspect of Luther’s thought as it developed over time."—Susan Mobley, Concordia University Wisconsin

Tryntje Helfferich is Associate Professor of History, The Ohio State University at Lima. She has edited and translated Luther's On the Freedom of a Christian (2013) and The Thirty Years War: A Documentary History (2009) for Hackett.

"[Helfferich's] translations are clear and easy to read and couched in contemporary English that is appealing to the reader. The introductions to each document are informative and effective, sketching out each text's major themes, and placing the document into a larger context. The information provided in the notes is helpful, particularly the references identifying Scriptural passages to which Luther refers. The book features a balanced assortment of Luther's works, including some of his most important and well known works, as well as some of his lesser known (or, at least, lesser read) writings. The collection reflects the broad range of subjects that Luther addressed during his lifetime and, since the documents are arranged in chronological order, it provides the reader with the opportunity to see how Luther’s thought developed. The thematic table of contents is extremely helpful as it identifies for the reader in which writings Luther addressed a particular topic. The collection of documents, then, is valuable in that it allows readers to explore both the breadth of Luther's work as well as to engage a particular aspect of Luther’s thought as it developed over time."—Susan Mobley, Concordia University Wisconsin

Tryntje Helfferich is Associate Professor of History, The Ohio State University at Lima. She has edited and translated Luther's On the Freedom of a Christian (2013) and The Thirty Years War: A Documentary History (2009) for Hackett.

"[Helfferich's] translations are clear and easy to read and couched in contemporary English that is appealing to the reader. The introductions to each document are informative and effective, sketching out each text's major themes, and placing the document into a larger context. The information provided in the notes is helpful, particularly the references identifying Scriptural passages to which Luther refers. The book features a balanced assortment of Luther's works, including some of his most important and well known works, as well as some of his lesser known (or, at least, lesser read) writings. The collection reflects the broad range of subjects that Luther addressed during his lifetime and, since the documents are arranged in chronological order, it provides the reader with the opportunity to see how Luther’s thought developed. The thematic table of contents is extremely helpful as it identifies for the reader in which writings Luther addressed a particular topic. The collection of documents, then, is valuable in that it allows readers to explore both the breadth of Luther's work as well as to engage a particular aspect of Luther’s thought as it developed over time."—Susan Mobley, Concordia University Wisconsin