This book is the first comprehensive study of the Arabic documents uncovered in Quseir, Upper Egypt, during the 1980s. The hundreds of paper fragments shed light on activities and operations of a family shipping business on the Red Sea shore in the thirteenth century. Part One is an introductory essay on historical and cultural context of these documents. The three chapters deal with, respectively, the Sheikh's house, where the documents were found, the Red Sea commerce as reflected in the trade activities around the house, and aspects of popular culture as revealed through the texts. Part Two comprises a critical edition of eighty-four Arabic texts, the majority of which have never been published before, with translation and commentary.