A working basis for all subprojects is the growing number of precious manuscripts that have been closely analyzed with regard to the material components used by medieval artists and scribes to produce these splendid objects. In cooperation with the Conservation Research Department of the Swiss National Museum, we will conduct our own technical analyses of material components when necessary. The data thus gained will be placed in a wider context in order to study all aspects of the multi-layered material textures of precious manuscripts from the 8th to the 13th century. A range of methodologies will be pursued to study questions of production, patronage, liturgical usage, display and care of the objects, as they pertain to different categories of medieval ornament.