Charles T. Tart was an American psychologist and parapsychologist known for his psychological work on the nature of consciousness (particularly altered states of consciousness), as one of the founders of the field of transpersonal psychology, and for his research in parapsychology.
read this because I knew the author. it's a dry subject, mostly about specific studies and ideas for further study. not a self help book. you won't suddenly develop telekinesis by reading this. oh well... :-) but if you're looking to improve learning models related to psi this might be up your alley.