HP. Hoodedcobra666 said:
Unfortunately I have found nothing on these, only garbage about vampires and other shit. But I have been working on this heavily over the years, and will therefore write instructions so that people can go from there. Necromancy is deep, and the JoS doesn't have a section like this.
Necromancy is also, not for everyone. It's also not for the feint hearted, as connecting with the dead can be a serious task that affects one's life a lot.
Start reading about the funerary texts of Egypt. If your affinity leads you to inner knowledge, you'll understand things from there. The Egyptian Book of the Dead is an important material for this.
Think of first, what you want to do. Do you want to talk to the dead? Summon them? What precisely do you want?