A Grimoire is a book containing spells or incantations, or a system of magick. Many such books were produced during the Middle Ages and Renaissance. For a more thorough look at Grimoires: Grimoire- the Magician's Handbook

Magician consulting a Grimoire, from Rembrandt

Related Resources:

• Grimoires
  Browse a selectioon of Gromoires, ancient and modern-day.
• Ritual Magick
  Ritual Magick, also known as Ceremonial Magick, one of the most mysterious and misunderstood spiritual traditions, dates back in various forms to the beginnings of human culture, and has been continually practiced through to the present day- inspiring movements as diverse as Wicca, Theosophy, and the New Age, as well as such diverse disciplines as Chaos magick, Aeonic magick, and Thelema.
• Beginning Magick
  Resources and primers for beginners to Magick.
• Magical texts
  Etexts, Grimoires, tables, and other source material for Ritual Magick. Agrippa, Dee, Crowley, etc. resources and instruction on Tarot, esoteric kabbalah, magickal weapons, more.