Book excerpt: The Protestant and Catholic Reformations thrust the nature of conversion into the center of debate and politicking over religion as authorities and subjects imbued religious confession with novel meanings during the early modern era. The volume offers insights into the historicity of the very concept of "conversion." One widely accepted modern notion of the phenomenon simply expresses denominational change. Yet this concept had no bearing at the outset of the Reformation. Instead, a variety of processes, such as the consolidation of territories along confessional lines, attempts to ensure civic concord, and diplomatic quarrels helped to usher in new ideas about the nature of religious boundaries and, therefore, conversion. However conceptualized, religious change- conversion-had deep social and political implications for early modern German states and societies. David M. Luebke is Professor of History at the University of Oregon. His publications include His Majesty's Rebels: Factions, Communities, and Rural Revolt in the Black Forest (Cornell University Press 1997) and many articles, most recently "Confessions of the Dead: Interpreting Burial Practice in the Late Reformation" (Archiv für Reformationsgeschichte 101: 2010). Jared Poley is Associate Professor of History at Georgia State University. He is the author of Decolonization in Germany: Weimar Narratives of Colonial Loss and Foreign Occupation (Peter Lang 2005). Daniel C. Ryan is currently Visiting Assistant Professor at the College of Charleston. He was awarded his PhD in 2008 from the University of California, Los Angeles, with a study on conversion and peasant protest in Imperial Russia. David Warren Sabean is the Henry J. Bruman Endowed Professor of German History at University of California, Los Angeles. He is the author of Property, Production, and Family in Neckarhausen, 1700-1870 (Cambridge University Press 1990) and Kinship in Neckarhausen, 1700-1870 (Cambridge University Press 1998). He recently edited, with Simon Teuscher and Jon Mathieu, Kinship in Europe: Approaches to Long-Term Development, 1300-1900 (Berghahn Books 2007).