Shams al-Ma'arif or Shams al-Ma'arif wa Lata'if al-'Awarif (Arabic: كتاب شمس المعارف ولطائف العوارف‎, lit. 'the Book of the Sun of Gnosis and the Subtleties of Elevated Things') is a 13th-century grimoire written on Arabic magic and a manual for achieving esoteric spirituality. It was written by The Algerian scholar Ahmad al-Buni who wrote it while living in Ayyubid Egypt, he died around 1225 CE (622 AH). The Shams al-Ma'arif is generally regarded as the most influential textbook of its type in the Arab world, and is arguably as important as, if not more than, the Picatrix in both hemispheres.