English summary: This book on the Sicilian Norman mosaics has an unusual inception story. The ideas expressed in it were generated not primarily through library readings but rather through the direct observation of the mosaics themselves from the scaffolds in the Cappella Palatina and the Martorana in Palermo and the Cefalu Cathedral, as well as those in churches in the Greek East (Daphni, Nea Moni on Chios, St. Michael in Kiev, etc.). The...