Goetia (goh-Eh-tee-ah, English: goety) is a type of European sorcery, often referred to as witchcraft, that has been transmitted through grimoires—books containing instructions for performing magical practices. The term "goetia" finds its origins in the Greek word goēs, which originally denoted diviners, magicians, healers, and seers. Initially, it held a connotation of low magic, implying fraudulent or deceptive mageia as opposed to theurgy, which was regarded as divine magic. Grimoires, also known as "books of spells" or "spellbooks", serve as instructional manuals for various magical endeavors. They cover crafting magical objects, casting spells, performing divination, and summoning supernatural entities, such as angels, spirits, deities, and demons. Although the term "grimoire" originates from Europe, similar magical texts have been found in diverse cultures across the world.
The history of grimoires can be traced back to ancient Mesopotamia, where magical incantations were inscribed on cuneiform clay tablets. Ancient Egyptians also employed magical practices, including incantations inscribed on amulets. The magical system of ancient Egypt, deified in the form of the god Heka, underwent changes after the Macedonian invasion led by Alexander the Great. The rise of the Coptic writing system and the Library of Alexandria further influenced the development of magical texts, which evolved from simple charms to encompass various aspects of life, including financial success and fulfillment. Legendary figures like Hermes Trismegistus emerged, associated with writing and magic, contributing to the creation of magical books.