The Law of Psychic Phenomena by Thomson Jay Hudson is a pioneering work of psychical research, offering a rational and systematic framework for understanding hypnosis, telepathy, mediumship, and mental healing. Hudson introduces the "e;dual mind"e; theory, dividing human consciousness into objective (logical) and subjective (intuitive) faculties, and explains how this model can account for paranormal phenomena without invoking the supernatural. Balancing scientific skepticism with open-minded inquiry, Hudson's work helped shape early psychology, spiritualism, and mind science movements. A landmark of rational occultism, this book still resonates with those exploring the boundaries between mind, science, and spirit.