Word means "black books". Grimoires were magician's textbooks, often containing codes to prevent their use by the uninitiated. Done in manuscript, to this day the words contained within a magical text carry no power unless rewritten in the hand of the practitioner. Examples of grimoires are: The Chaldean Oracles of Zoroaster The Grimoire of Honorius Key of Moses The Sacred Magic of Arra-Melin
Ancient or modern magical texts, such as the Book of Shadows. They are replete with instructions for working magic/sorcery, divination, spiritualism, and other occultic practices, procedures, and principles. Many of the older grimoires contain information believed to enable one to control various spirits so that they will perform one's desires.