Dr. Terje Simonsen has written a great book. It is well-sourced, interesting, covering many aspects of the psi phenomenon including telepathy, clairvoyance, precognitions, telkinesis & healing. If you have an interest in anything that could be construed as paranormal this is the book for you. He is humorous & detailed. I enjoy his conversation, but his writing will be on my go-to shelf for research & in by bag when investigating. He has truly written a primer for paranormal education.