?The amount of labor that has gone into this volume has been enormous. By this work (and its parent volume), Sinclair has opened up a whole new field for the stuy of the history of Christian spirituality and particularly of the history of Christian prayer; moreover, the work constitutes an immense quarry from which can be mined considerable knowledge of popular religion in the French medieval period. A remarkable, excellent work that will provide almost endless possibilities for study and understanding on one period of Christian spirituality.?-ADRIS Newsletter