The Books of Occult Philosophy (De Occulta Philosophia libri III) is Heinrich Cornelius Agrippa's study of occult philosophy, acknowledged as a significant contribution to the Renaissance philosophical discussion concerning the powers of ritual magic, and its relationship with religion. The first book was printed in 1531 in Paris, Cologne, and Antwerp, while the full three volumes first appeared in Cologne in 1533.
The three books deal with Elemental, Celestial and Intellectual magic. The books outline the four elements, astrology, kabbalah, numbers, angels, God's names, the virtues and relationships with each other as well as methods of utilizing these relationships and laws in medicine, scrying, alchemy, ceremonies, origins of what are from the Hebrew, Greek and Chaldean context.
This edition also includes the Fourth book

The Four Books of Occult Philosophy is a must have in any grimoire collection.