In the 1800s and early 1900s, one of the most popular “spell books” was “The Long Lost Friend” which drew extensively upon Christian theology to create “spells” that would drive away hexes, curses, evil spirits, bring good fortune, etc. This stuff is the equivalent of “soft porn” in that it seems relatively “not really evil” and supposedly produces results that make the user feel good.
A current popular book is in the position of deceiving, Jesus Calling. The author admits to using the occult to write the book. Our pastor warned certain church members about the book but they followed it anyway. They left the church and were poisoning others minds after they left.
Another point our pastor brought up is that there are no longer any Christian book publishers. They have all been bought up. That includes all current Bible printing.