This is the first detailed study of the Trier Gospels, an important early medieval manuscript. Through an investigation of its production, Professor Netzer reveals the cross-cultural influences among the Insular, Continental, and Mediterranean worlds in the eighth century, demonstrating in particular the complicated process of cultural interplay that took place in the scriptorium at Echternach. She traces the history of the production of the manuscript through a detailed analysis of its components: the individual texts, construction and arrangement of gatherings, scripts, ornamental initials, canon tables, and illustrations. She sheds light on the manuscript's sources, on the different backgrounds of the two scribe-artists involved in its production, on the influences which determined the size and layout of the codex, the role of the pictures within the book, and the place of the manuscript in the development of Insular and Continental book production. This study makes a significant contribution to the understanding of early medieval book production and of the influence of missionaries from the British Isles on early Continental culture.