Graphic Signs of Authority in Late Antiquity and the Early Middle Ages presents a cultural history of graphic signs and examines how they were employed to communicate secular and divine authority in the late antique Mediterranean and early medieval Europe. Visual materials such as the sign of the cross, christograms, monograms, and other such devices, are examined against the backdrop of the cultural, religious, and socio-political transition from the late Graeco-Roman world to that of medieval Europe. This monograph is a synthetic study of graphic visual evidence from a wide range of material media that have rarely been studied collectively, including various mass-produced items and unique objects of art, architectural monuments and epigraphic inscriptions, as well as manuscripts and charters. This study promises to provide a timely reference tool for historians, art historians, archaeologists, epigraphists, manuscript scholars, and numismatists.