 The book begins with Jung's doctoral dissertation "On the Psychology and Pathology of So-Called Occult Phenomena", a case study of an adolescent girl who claimed to be a psychic medium.It also includes papers on cryptomnesia, Freudian slips in reading, simulated insanity, and other subjects, and discusses some conditions of inferiority and altered states of consciousness which were previously thought to be occult phenomena.Included are case studies of sleepwalkers and patients who suffered from hypomania.