The 'Grimorium Verum' (Latin for True Grimoire or The Grimoire of Truth), is an 18th-century grimoire, attributed to one "Alibeck the Egyptian" of Memphis, who purportedly wrote in 1517. Like many grimoires, it claims a tradition originating with King Solomon.
The grimoire is not a translation of an earlier work as purported, its original appearing in French or Italian in the mid 18th century, as noted already by Arthur Waite who discussed the work in his The Book of Ceremonial Magic (1911), stating:
One version of the Grimoire was included as "The Clavicles of King Solomon: Book 3" in one of the French manuscripts S. L. MacGregor Mathers incorporated in his version of The Key of Solomon, but it was omitted from the 'Key' with the following explanation:[1]
Idries Shah also published some of it in "The Secret Lore of Magic: Book of the Sorcerers" in 1957.