"This book enhances our understanding of an essential feature in modern Orthodoxy that has heretofore been underemphasized. Ferziger's sociological approach to rabbinic responsa is rare in the English-language literature, and his theoretical framework is well thought out, clearly presented, and very useful." (Samuel Heilman) "This very nuanced and informed study charts Orthodox responses to concrete cases of nonobservance and deviant behavior in nineteenth-centruy central Europe and thereby traces the emergence of modern Orthodoxy." (American Historical Review)