Sebastian Münster's Cosmographia was an immensely influential book that attempted to describe the entire world across all of human history and analyse its constituent elements of geography, history, ethnography, zoology and botany. Through this examination of Münster, his publications and scholarly networks, the conflicts and continuities between medieval scholarly traditions and the widening horizons of the sixteenth century are explored and revealed. Of interest to scholars of humanist culture, the Reformation and book history, this ambitious work throws into relief previously overlooked aspects of the intellectual and religious culture of the time.