Grimorium Verum - The True Grimoire (First Edition 18th Century)

The Grimorium Verum (sometimes spelled Grimorium) is one of the most evil works of black magic ever achieved in the occult.

Calling upon Beelzebub and Lucifer to use a dead man's head and beans to summon a demon and gain invisibility, much of its content is purely demonic in nature. Infamous for such content, it enjoyed wide circulation at the time of works like the Petit Albert and the Grand Grimoire.