Book excerpt: During the Reformation, Europeans were engaged in a debate that would alter the course of European history. This debate was about how to understand and practice the Christian faith. Never before had so many people weighed in on a topic of such importance. This book presents the debates of the Reformation era through over eighty primary sources. Some of the documents present formal debates. Others represent informal debates or disputes, with one text responding directly to the other. Still other sections present texts that offer divergent approaches to or perspectives on specific ideas. These too were part of the century-long debate that characterized the Reformation. The author provides an essay on how to read primary sources. Each chapter opens with a brief introduction, and each group of primary sources is preceded by information on historical context as well as focus questions. Further readings are provided at the end of each chapter, and a map of Europe divided by religions is included.