This paper is a contextualized stylistic study built around a carbon-dated book painting from a well-defined artistic corpus of Mediaeval East Central Asia. Its primary sources of evidence are Manichaean works of art from Turfan, produced under Uygur patronage (8th-11th ce. CE). These sources are subjected to a pictorial analysis that yields the recognition of four stylistic groups. Through the introduction of comparative visual sources, it is shown that the roots of two Manichaean styles are West Asian, while the other two are Chinese. The interpretation of this art historical data in light of historical sources results in new views regarding how pictorial art developed in this region. Until now it has been thought that an earlier "Persian...