After explaining the difference between magical thinking and the scientific method, the author employs the scientific method to shed light on the paranormal. Beginning with a concise history of spiritualism and séances, the author employs logic and careful experimental evidence to answer questions like: What is spiritualism? What are ghosts? And, of course, why do ghosts wear clothes? The bulk of this work is a thorough re-examination of the three-year study of the medium Leonora Piper by the Society for Psychical Research, of which the author is a member. He concisely summarizes the investigators' 255-page report and uses the evidence to demonstrate the true nature of the Spirit Realm and its inhabitants. Why do Ghosts Wear Clothes is a must read for paranormal investigators or anyone interested in the occult. And while you may not agree with his conclusions, you can't fault the method he uses to arrive there.