Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A definitive guide on "Ghost Hunting" by Troy Taylor

Troy Taylor, founder of the American Ghost Society has created what is considered by many as the definitive textbook for the would be and experienced "ghost hunter" alike. Some of the subjects presented are the history of ghost research, investigative technique, investigative equipment, ghost photography, step-by-step "how to conduct a paranormal investigation" and even sample forms to adapt for your own investigations.Troy provides a look at many established and discredited theories and provides the reader his own analysis and discussion of each.Many books have been written as 'Guides to Ghost Hunting' but Troy Taylor's "Ghost Hunter's Guidebook" is one book the serious paranormal researcher should have if he owns no other.