The 13th-century magical treatise Ars Notoria offers a secret account of the angel Pamphilius revealing the sacred magic to King Solomon by which he gained his famed wisdom and learning, thereby expanding upon the biblical narrative in which Solomon received a vision of God. Solomon’s writings were transmitted to the first-century philosopher, Apollonius of Tyana, who provided a commentary entitled the Golden Flowers (Flores Aurei), which is contained within Ars Notoria. The magical text presents a complete system of angelic magic consisting of prayers addressed to angels, using figures called notae, for the purpose of acquiring scholastic and heavenly knowledge. Due to its rising popularity among university students, the magical ritual was reworked time and again, producing five treatises, dating from the 13th to 15th centuries; The Work of Works (Opus Operum), the Book of Flowers of Heavenly Teaching composed by the French Benedictine monk named John of Morigny, The Short Art (Ars Brevis), the abridged version attributed to Thomas of Toledo, and The Pauline Art (Ars Paulina), thereby establishing an entire notorial art tradition. In this new and complete translation of Ars Notoria, based on Julien Veronese’s critical Latin edition, translator Matthias Castle presents the classic magical text, both short and long versions, including four of the later treatises. Castle explains how these theurgic ritual practices were performed, giving special attention to all the original pictorial figures (notae), and how the art of memory relates to angelic magic. Providing practical instruction, extensive commentary, and in-depth background research and annotations, Ars Notoria: The Notory Art of Solomon is an essential sourcebook on angelic magic for scholar and magician alike.