In the urban communities of medieval Germany and northern France, the beliefs, observances, and practices of Jews allowed them to create and define their communities on their own terms as well as in relation to the surrounding Christian society. Although medieval Jewish texts were written by a learned elite, the laity also observed many religious rituals as part of their everyday life. In Practicing Piety in Medieval Ashkenaz , Elisheva Baumgarten asks how Jews, especially those who were not...