Mediaeval Manichaean Book Art focuses on a corpus of 89 fragments of exquisitely illuminated manuscripts that were produced under the patronage of the Turkic-speaking Uygurs in the Turfan region of East Central Asia between the 8th and 11th centuries C.E., and used in service of the local Manichaean church. By applying a codicological approach to the analysis of these sources, this study casts light onto a lost episode of Central Asian art history and religious book culture. Mediaeval Manichaean Book Art represents a pioneer study in its subject, research methodology, and illustrations. It extracts codicological and art historical data from torn remains of lavishly decorated Middle-Persian, Sogdian, and Uygur language manuscripts in codex, scroll, and 'palm-leaf' formats. Through detailed analyses and carefully argued interpretations aided by precise computer drawings, the author introduces an important group of primary sources for future comparative research in Central Asian art, mediaeval book illumination, and Manichaean studies.