Fra Mauro's mappamundi, drawn around 1450 in the monastery of San Michele on Murano in the lagoon of Venice, is among the most relevant compendia of knowledge of the Earth and the Cosmos of the fifteenth century. By examining literary, visual, textual and archival evidences, some long considered lost, this book places the map within the larger context of Venetian culture in the fifteenth century. It provides a detailed analysis of both its main sources (auctores veteres such as Pliny, Solinus, Ptolemy, and novi, like Albert the Great, Thomas Aquinas, Marco Polo and Niccol