The Ars Notoria is a mediaeval grimoire, or magician's manual, which was widely distributed and very popular in the 13th-16th century, but virtually unknown tod

One of the lengthier grimoires of the medieval period, the Ars Notoria, commonly referred to as the Notary Art of Solomon, promises the reader a series of orati

"A collection of essays examining medieval and early modern texts aimed at performing magic or receiving illumination via the mediation of angels. Includes disc

In this original, provocative, well-reasoned, and thoroughly documented book, Frank Klaassen proposes that two principal genres of illicit learned magic occur i