"Lucidly written, extensively documented, and masterfully argued, Gratian the Theologian is an impressive work of scholarship that draws upon a wide-ranging, yet intimate knowledge of the relevant legal and theological sources to illuminate and contextualize the theological elements in Gratian's thought and, at the same time, to contribute substantively to the ongoing discussion of the textual history of the Decretum. Addressed to specialists and advanced students, this book belongs on the shelves of all academic libraries supporting programs in canon law, theology, and medieval history."-Catholic Library World