This is the first major work devoted entirely to the Aramaic-Syriac roots of Manichaeism containing inter alia editiones principes of hitherto unknown Syriac-Manichaean texts as well as other editions, studies of the palaeography and origin of the earliest specimens of Manichaean script, interpretation of the texts in the context of Enochic Jewish literature and early Syriac literature, an art-historical study of the Mani seal, as well as photo plates of all the manuscripts edited in the volume.