Necronomicon
Since Lovecraft's death, several authors have written their own versions of the Necronomicon. They are the author's imagination of what the Necronomicon would be like, if it were real.  A few claim to be the actual Necronomicon. The most famous case of a "real" Necronomicon is the "Simon" Necronomicon.  Simon is a fake name.  It was published in the 1970s. The "Simon" Necronomicon is based on Sumerian mythology. It has nothing to do with H. P. Lovecraft's fiction. Some people dislike the "Simon" Necronomicon.  They do not like that it pretends to be real.  Sometimes, people believe it to be real.  Simon has written several books about the Necronomicon'''s "discovery".