Ars Notoria: The Notory Art of Solomon
The Ars Notoria is a Medieval Grimoire of the 'Solomonic Cycle'. Many Latin manuscripts are extant, the oldest are dated thirteenth century, and possibly earlier. Like Liber Juratus (also thirteenth century), the text centers around an even older collection of orations or prayers which are interspersed with magical words. The orations in Ars Notoria and those in Liber Juratus are closely related, and suggest to me a common oral tradition. The orations in both works are said to have mystical properties which can impart communion with God and instant knowledge of divine and human arts and sciences.