The Heptameron Or Magical Elements of Peter de Abano is a book written by Henry Cornelius Agrippa. The book is a collection of magical and occult knowledge, based on the works of the 13th-century Italian philosopher and physician, Peter de Abano. The Heptameron is divided into seven parts, each dealing with a different aspect of magic and the occult. These include astrology, divination, the use of talismans and amulets, and the summoning of spirits...