"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.