"Luciferal Gematria"

I was trying to find books on the spirits of the Trans-Qliphothic Labyrinth and a member here posted about a book (Kitvei Kodesh HaChol by Matthew Wightman) which I couldn’t find sadly… but it lead me to a publisher’s webshop and found an interesting title there: The Explicit Name of Lucifer by G. De Laval

According to the flavour text the author invented a new method for gematria and calls it the “Luciferal Gematria”, using this he discovered more spirits, who serve Lucifer. I’m only interested in the cypher, and I don’t know if it’s a book I should invest into - do anyone here have the book? If so, have you found it useful?

Try the writings on Sithra Ahra from aka Paymon there is some important gematry