Dion Fortune 
Psychic self-defense: The Classic Instruction Manual for Protecting Yourself Against Paranormal Attack 

After finding herself the subject of a powerful psychic attack in the 1930’s, famed British occultist Dion Fortune wrote this detailed instruction manual on protecting oneself from paranormal attack. This classic psychic self-defense guide explains how to understand the signs of a psychic attack, vampirism, hauntings, and methods of defense.Everything you need to know about the methods, motives, and physical aspects of a psychic attack and how to overcome it is here, along with a look at the role psychic elements play in mental illness and how to recognize them.This is one of the best guides to detection and defense