Clavicula Salomonis: The Book of Knowledge, Paperback/Tarl Warwick

The original Clavicula Salomonis is not the text that is generally regarded as the Solomonic Key of the modern era. A short manuscript, it appears predominantly in the form of an ostensibly Catholic text dedicated to the consecration of various tools in order to conjure demonic and angelic forces and cause them to obey the will of the master conducting such ceremonies. Dated to the 16th century, it is the most notorious magickal text of all time, and forms the very core of much modern occultism, both genuine and fabricated, both now-old and modern.