The Magus: A Complete System of Occult Philosophy
Written by Francis Barrett
"The Magus, or Celestial Intelligencer; being a Complete System of Occult Philosophy is a handbook of the occult and ceremonial magic compiled by Francis Barrett and published in 1801. This book facilitated the modern revival of magic by making information from otherwise rare books readily available. It may have influenced novelist Edward Bulwer-Lytton and occultist Eliphas Levi. More controversially, it has been identified as an influence on Joseph Smith, Jr., founder of the Latter Day Saint movement, in Reed C. Durham, Jr.'s speech "Is There No Help for the Widow's Son? " Reproduction of 1801 Edition." 
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