Few studies focus on the modes of knowledge transmission (or concealment), or the trends of continuity or change from the Ancient to the Late Antique worlds. In Antiquity, knowledge was cherished as a scarce good, cultivated through the close teacher-student relationship and often preserved in the closed circle of the initated. From Assyrian and Babylonian cuneiform texts to a Shi'ite Islamic tradition, this volume explores how and why knowledge was shared or concealed by diverse communities in a range of Ancient and Late Antique cultural contexts. From caves by the Dead Sea to...