Okay, seeming that there's a "Recommended Audio" thread, I figured I'd start a thread about books, and the book I'd like to recommend is "Psychic Vampires: Protection from Energy Predators & Parasites", by Joe H. Slate, Ph. D.
It's a very interesting book that obviously talks about psychic vampirism, it also mentions that the US government was doing research regarding psychic vampirism (or something along those lines), this is a small excerpt from the book:
Psychic Vampirism: A Comprehensive View
My interest in psychic vampirism began over twenty-five years ago when I received a research contract to study the human energy system from a seemingly unlikely source - The U.S. Army Missile Research and Development Command. Although the purpose of the project was to investigate the energy field developing the human body, it became increasingly evident during the thirteen-month study that the body's external energy field, commonly called the human aura, is but an outward manifestation of a dynamic internal energy system. Conducted at Athens State College (now University), the study, along with several follow up projects, found the human energy system to be a highly sensitive, complex phenomenon that is affected by the mental and physical state of the individual as well as a host of external factors. Of particular relevance to the system are a variety of social influences, including our interactions with other human energy systems.
Taken together, the evidence is clear - the human energy system, with its complex structure and functions, is flawlessly engineered to energize and sustain our existence as an indestructible life-force entity. It transcends biology in essence, function, and design. Without question, the deeper our understanding of that energy system and the forces that affect it, the richer the quality of our present lives and the greater our potential for future growth.
Exquisitely designed, the human energy system is flexible and developmental in nature. Figuring out ways to empower that system and promote its evolvement is one of our greatest challenges. We now know that the human energy system is responsive to the same conditions that enrich our overall growth, such as an enriched environment, a positive self-image, a sense of well-being, and a state of inner balance. Similarly, the conditions that impair our total growth likewise impair the energy system and its functions.
Psychic vampirism is a widespread yet often unrecognized human energy phenomenon that can interrupt our growth and impede our progress. As already noted, it exists in a variety of forms, each of which subtly consumes its victim's energy and over the long haul, erodes the energy system itself. Although no known force can totally destroy the human energy system because of its cosmic makeup, psychic vampirism and, equally as important, mastering the psychic empowerment strategies related to it are critical in our struggle to realize our growth potentials and achieve our highest level of self-fulfillment.
Although psychic vampirism exists in various forms, the expression, unless qualified, typically denotes psychic vampirism between two persons, the one being the psychic vampire and the other the host victim. In that context, the psychic vampire, who is deficient in energy resources, taps the energy reserve of a host victim for the express purpose of extracting energy from it. The immediate effects vary but usually include a new surge of revitalizing energy for the psychic vampire and a critical depletion of essential energy for the vampirized victim.
Unfortunately, the long-term consequences of recurring vampire assaults on the energy system can be completely harmful, not only for the host victim but for the psychic vampire as well. Short-circuiting the internal energy system sabotages the psychic vampire's personal development, thus arresting healthy development and making repeated vampire interactions necessary. The host victim's energy system, on the other hand, becomes stressed by the depletion of energy and overworked in order to generate new energy. Given recurrent attacks, the victim's energy supply can become chronically depleted and the internal energy system itself can become severely damaged.