Magus's historical top darkest grimoires

1. The Sixth and Seventh Books of Moses

Although one of the more recent grimoires, first circulating in manuscript in the 18th century, this has to be number one for the breadth of its influence. From Germany it spread to America via the Pennsylvania Dutch, and once in cheap print was subsequently adopted by African Americans. With its pseudo-Hebraic mystical symbols, spirit conjurations and psalms, this book of the secret wisdom of Moses was a founding text of Rastafarianism and various religious movements in west Africa, as well as a cause célèbre in post-war Germany.

2. The Clavicule of Solomon

This is the granddaddy of grimoires. Mystical books purporting to be written by King Solomon were already circulating in the eastern Mediterranean during the first few centuries AD. By the 15th century hundreds of copies were in the hands of Western scientists and clergymen. While some denounced these Solomonic texts as heretical, many clergymen secretly pored over them. Some had lofty ambitions to obtain wisdom from the "wisest of the wise", while others sought to enrich themselves by discovering treasures and vanquishing the spirits that guarded them.

3. The Book of Honorius

Books attributed to Honorius of Thebes were second only to those of Solomon in notoriety in the medieval period. In keeping with a strong theme in grimoire history, there is no evidence that an arch magician named Honorius lived in antiquity - as manuscripts ascribed to him stated. Through prayers and invocations, books of Honorius gave instructions on how to receive visions of God, Hell and purgatory, and knowledge of all science. Very handy.

4. The Fourth Book of Occult Philosophy

Cornelius Agrippa was one of the most influential occult philosophers of the 16th century. He certainly wrote three books on the occult sciences, but he had nothing to do with the Fourth Book which appeared shortly after his death. This book of spirit conjuration blackened the name of Agrippa at a time when the witch trials were being stoked across Europe.

5. The Magus

Published in 1801 and written by the British occultist and disaster-prone balloonist Francis Barrett, The Magus was a re-statement of 17th-century occult science, and borrowed heavily from an English edition of the Fourth Book of Occult Philosophy. It was a flop at the time but its influence was subsequently considerable on the occult revival of the late 19th century and contemporary magical traditions. In the early 20th century a plagiarised version produced by an American occult entrepreneur and entitled The Great Book of Magical Art, Hindu Magic and East Indian Occultism became much sought after in the US and the Caribbean.

6. Greek Magical Papyri 

The Greek Magical Papyri (Latin Papyri Graecae Magicae, abbreviated PGM) is the name given by scholars to a body of papyri from Graeco-Roman Egypt, which each contain a number of magical spells, formulae, hymns and rituals. The materials in the papyri date from the 2nd century BC to the 5th century AD. The manuscripts came to light through the antiquities trade, from the 18th century onwards. One of the best known of these texts is the Mithras Liturgy.

7. The Lesser Key of Solomon

The Lesser Key of Solomon, also known as Clavicula Salomonis Regis, or Lemegeton, is an anonymous grimoire (or spell book) on demonology. Its one-hundred-forty-four spells were compiled in the mid-17th century, mostly from materials a couple of centuries older. It is divided into five books—the Ars Goetia, Ars Theurgia-Goetia, Ars Paulina, Ars Almadel, and Ars Notoria.