Bamberg Cathedral, the main church of the diocese founded in 1007 by King Henry II (r. 1002-1024), had one of the most impressive church treasuries of the Ottonian period. It was not only endowed with precious liturgical vessels, but also with numerous Gospels books and Gospel lectionaries. Some of these codices were written in the early Middle Ages, well before the foundation of the diocese, whereas other manuscripts were produced around the same time, possibly even specifically for the cathedral and for its consecration. Among the latter are the manuscripts from the scriptorium of Reichenau Abbey. This article addresses the question as to whether the visual organisation of the Gospel books and Gospel lectionaries allows conclusions to be drawn about their use for the reading of the pericopes from the Gospels. In this context, both the primary adaptations already made in the scriptorium by means of signs or special script colours as well as the secondary adaptations like markings are examined more closely in order to work out whether a deliberate orchestration of the manuscripts for special occasions can be discerned.