This collection of essays examines medieval and early modern perceptions of the marvelous and the monstrous. The essays investigate the nature of those phenomena and how people of these periods experienced them and how they recreated that experience for others. The essays trace the development of representations of marvels and explicate individual incarnations of monster and miracles. They analyze the importance of marvelous difference in defining ethnic, racial, religious, class, and gender identities to ask what legacy the medieval confrontations with marvels left for the modern world. These excellent essays look at issues that have long perplexed readers, such as the meaning of marvels, and whether we can read them in earnest or whether they can be appreciated only as play. The different authors bring their expertise to the fore to discuss the development of thoughts on marvels from the classical tradition through the concept’s development in the medieval and early modern tradition. This collection is essential reading for any analysis of the marvelous in these periods and the state of scholarship surrounding them.