Medieval scholars and cultural historians have recently turned their attention to the question of "smells" and what olfactory sensations reveal about society in general and holiness in particular. Sacred Scents in Early Christianity and Islam contributes to that conversation, explaining how early Christians and Muslims linked the "sweet smell of sanctity" with ideals of the body and sexuality; created boundaries and sacred space; and imagined their emerging communal identity. Most importantly, scent--itself transgressive and difficult to control--signaled transition and transformation between...