Identifying the sources of Tibetan Buddhist painting has been the object of much scholarship in recent years, a pursuit that has often been frustrated by the scarcity of materials. While almost nothing except a few Dunhuang paintings in Tibetan style remains from the period of the First Conversion in the eighth century, about 500 works have survived from the years between the eleventh-twelfth century chidar, or Second Conversion under the guidance of the Indian sage...