Picatrix

thumb|Title of a 1612 Ghayat al-Hakim manuscript (Istanbul, Hagia Sophia 2443). Picatrix () is a 400-page Arabic book of magic and astrology, which most scholars assume was originally written in the middle of the 11th century, though an argument for composition in the first half of the 10th century has been made. The work was translated into Spanish and then into Latin during the 13th century, at which time it got the Latin title Picatrix. The title Picatrix is also sometimes used to refer to the book's author.

Picatrix is a composite work that synthesizes older works on magic and astrology. One of the most influential interpretations suggests it is to be regarded as a "handbook of talismanic magic". Another researcher summarizes it as "the most thorough exposition of celestial magic in Arabic", indicating the sources for the work as "Arabic texts on Hermeticism, Sabianism, Ismailism, astrology, alchemy and magic produced in the Near East in the ninth and tenth centuries A.D." Eugenio Garin declares, "In reality the Latin version of the Picatrix is as indispensable as the Corpus Hermeticum or the writings of Albumasar for understanding a conspicuous part of the production of the Renaissance, including the figurative arts." It has significantly influenced West European esotericism from Marsilio Ficino in the 15th century, to Thomas Campanella in the 17th century. The manuscript in the British Library passed through several hands: Simon Forman, Richard Napier, Elias Ashmole and William Lilly.