A carved ivory book cover produced circa 850 depicts Pope Gregory I (Gregory the Great) in the Lateran Palace in Rome writing in a codex, with the Holy Spirit, depicted as a dove, whispering in his ear. In a panel below three monk scribes are shown writing. The Carolingian book cover, preserved in Vienna at the Kunsthistorisches Museum, has been attributed to the "Master of the Gregory Tablet."
"Pope Gregory the Great is regarded as the author of the liturgical texts spoken by the priest during Mass in the Roman Catholic Church. Charlemagne later made them obligatory throughout his newly-founded Roman Empire. Legend tells of a scribe who spied the dove of the Holy Spirit whispering the prayers in Gregory’s ear before the saint dictated them to him in a loud voice.
"The genius ivory carver responsible for this work retains the motif of divine inspiration but depicts the pope as an author, pausing to listen to the voice of inspiration before continuing to write. The composition is extended over two storeys and set inside the Lateran Palace. We are eye-witnesses to the divine word becoming text and its subsequent dissemination in the form of books" (from the Kunsthistorische Museum online text, accessed 08-06-2014).