Goetia (Latin, "howling") is a word used to describe a class of magick which emphasizes the summoning or calling forth of lesser spirits and demons to visible appearance, with the intention of binding the spirits to perform the magician's will.

Goetic Grimoires list long catalogues of spirits, their specific powers, and how they may be summoned by the use of different seals, incantations, sacrifices and incenses. Before conjuration, the magician must carefully consult these catalogues and select the single spirit best suited for the task.

Goetic magick, like most medieval magick, is extremely ceremonial and often calls for strict observance of many details. Not respecting the rituals would greatly enhance the risk for the practitioner.