No one has ever proved the existence of ghosts. Yet polls routinely show that people believe they exist. In one poll, 37 percent of Americans said they believe that a house can be haunted; 32 percent said they believe that spirits of the dead can return to the world of the living. The Library of Ghosts Hauntings examines all things ghostly-through lively narrative, personal accounts, and discussion of efforts to prove or disprove some of the many otherworldly sightings and encounters. Each book in the series includes sidebars and fact boxes that highlight or expand on intriguing phenomena, stories, and statistics. Source notes, a bibliography for further research, and index provide additional tools for student researchers. Book jacket.