The Sun of Knowledge (Shams al-Ma'arif) is one of the most revered historical grimoires of the Arabic corpus. Feared by some, hallowed by others, it is one of the most famous - or infamous - books in the Arabic-speaking and Islamicate world. Written in Egypt in the thirteenth century by a Sufi mystic and mage of Algerian origin, the Shams presents the fundamentals of Arabic-Islamic occult work - from spiritual cosmology and astrology (including various particularly lunar magics) to working with spirits and jinn, magical employment of letters and numbers, and the occult applications of the Qur'an - thereby comprising a veritable encyclopedia of Islamicate magical wisdom and formulae. Images and descriptions of amulets and talismans adorn it. Numerous beautiful manuscripts of the Sun of Knowledge have survived, various of which have been used as a basis for this present work. Never before published in English, this selected translation includes sections of the Sun of Knowledge on the mysteries of the letters, astrological timings, lunar mansions, the ancient Arab beliefs surrounding the stars, planetary matters, astronomy, the angels for and workings pertaining to the four seasons, summoning the jinn, the employment of the names of God for many and varied purposes, the construction of the famed ring of Solomon, and a miscellany of tried-and-true talismans. This selected translation takes a general approach to a much vaster text, and features illustrations, original artwork, and commentary to assist those unfamiliar with Islamic magic and culture. This edition is also ideal for any student of magic or the occult, classical Arabic astrology and astronomy, Islamic esotericism, or Sufism.