The Book of Eibon (エイボンの書, Eibon no Sho) (also called Eibon's Demon Book or Eibon's Book) is a Demon Book created by the Great Sorcerer and Great Old One of Knowledge, Eibon. In Soul Eater, the Book of Eibon appears both in the anime and manga. However, both differ from one another.
The Book of Eibon is based off a similar spellbook with the same name from H. P. Lovecraft's Cthulhu mythos. This version of the Book of Eibon was written by Eibon, a character who first appeared in Clark Ashton Smith's Hyperborea stories and referenced repeatedly in Lovecraft's own stories. Smith and Lovecraft's Book of Eibon chronicles Eibon's life and includes his magical formula.
List of the Book of Eibons
- Book of Eibon (Manga): The Book of Eibon was a Demon Book former owned by Eibon and has, since, been in used by the Icons within the series.
- Book of Eibon (Anime): In the anime, although the Book has a similar history, it was not used by the Icons and has a different history behind it. It is currently in the possession of the DWMA. In addition, the appearance of the Book differs.