Now, theres a book, you may or may not know it, dont beat yourself up over it. I've wanted it for years, the real deal. Someone I know claims to have two major versions of the regular. One is 500$ the other is 10K. The 500$ gives you special abilities if you do the rituals correctly and help you control the beasts in the book. (not completely) The 10K one transcends you through all limits with the "7 darkest powers". I've studies the seven sins and the archedemons, I still cant figure out what thoughs may be. Can the book, either one, really do that? Is it worth the money? Also, what are the 7 darkest powers?
The only power the Necronomicon has is what it's given as a fairly big thing in pop culture. If you wanted to try tapping into that it would be one thing, but then you'd be just as well off with a copy from a regular bookstore or ebay.