First printed in the 12th century, here is the earliest treatise on the arts written by a practicing artist. The Benedictine author details pigments, glass blowing, stained glass, gold and silver work, and more 34 illustrations.
Edited with a facing-page translation by C.R. Dodwell, this treatise is of great interest as the only known treatise of the Middle Ages to describe all the major arts. The original manuscript has not survived, but Professor Dodwell's reconstruction is considered definitive.