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tific method, which to date has not really been applied. This is why I enjoy working with Brandon and the rest of the team at APRA, because they not only have a desire to apply the scientific method and to use devices that could actually detect signals above the noise level, but also understand that if supernatural entities exist, they might not all be the same. From different paths, we each reach the same conclusion that if you are to study the supernatural, a classification system is needed so you are not pooling every observation. Imagine going to Africa in search of a lion, and as you searched the forest and found evidence of animal footprints, scat, and heard animal sounds, you classified that all as proof of lions. If you did, you end up with no picture of a lion, as it is a mess of conflicting evidence. It would be absurd to do that. So why is it acceptable that most supernatural investigations just describe everything as evidence of a ghost or “haunting”? It’s because they lack a good classification system. With such a system, you could begin to detail all the conditions around potential phenomena and perhaps find true evidence of various supernatural entities. In the book you are about to read, the authors put this principle into action. Whether you are a believer, a skeptic, or a scientist like me, I think you will enjoy the authors’ approaches and the application of them to their own experiences/investigations. Now turn off all but one light, sit down with a cup of hot chocolate or a good scotch, and enjoy. —Dr. Harry Kloor