“Abramelin” was a Jewish magician, living in 14th century Egypt, who conferred the “Sacred Magic” on one “Abraham the Jew” who came from Worms in present day Germany. Abraham the Jew then wrote up the account of his journey as well as the description of the Sacred Magic, which became the grimoire now known as “The Book of the Sacred Magic of Abramelin the Mage,” or “Book of Abramelin.”
That at least is the story: note however that neither Abraham the Jew’ nor Abramelin’s historicity have ever been proven independently, with some people believing them to be fictional characters.
I tend to assume that because the Sacred Magic works, it’s not actually necessary to know who Abramelin was, except that someone must have come up with the idea for it in the first place, so I call that mysterious person “Abramelin” all the same.
Alex Sumner’s answer to Who is Abramelin? Was he a prophet, a magician, or something? – Quora
Conjuring Demons for Pleasure and Profit: An Abramelin Memoir is published by Thoth Publications and is available worldwide from Amazon and all good bookstores.
Sol Ascendans - The Website of Alex Sumner 