The Book of Abramelin tells the story of an Egyptian mage named Abramelin[pronunciation?], or Abra-Melin, who taught a system of magic to Abraham of Worms, a Jew in Worms, Germany, presumed to have lived from c.1362–c.1458. The system of magic from this book regained popularity in the 19th and 20th centuries due to the efforts of Samuel Liddell MacGregor Mathers' translation, The Book of the Sacred Magic of Abramelin the Mage, its import within the Hermetic Order of the Golden Dawn, and later within the mystical system of Thelema (created in 1904 by Aleister Crowley).
Mathers used the least-reliable manuscript copy as the basis for his translation, and it contains many errors and omissions. The later English translation by Georg Dehn and Steven Guth, based on the earliest and most complete sources, is more scholarly and comprehensive. Dehn attributed authorship of The Book of Abramelin to Rabbi Yaakov Moelin (Hebrew יעקב בן משה מולין; ca. 1365–1427), a German Jewish Talmudist. This identification has since been disputed.[1]