From haunted mansions, airplanes, and lighthouses, to the "sightings" of relatives who died long ago, many people are convinced that ghosts are real and walk among us. Using real-life stories, this book examines some of the most interesting ghosts and hauntings, how ghost hunters go about their work, and scientific theories that attempt to explain paranormal phenomena.

Do ghosts exist? Groups of ghost hunters are bringing modern technology to bear in seeking answers to this age-old question. This book tells how ghost hunters go about their investigations--using devices such as those that monitor or measure changes in light, sound, and temperature--and to what extent they have succeeded. It also examines the divide between those who see ghost hunting as science and those who see it as something less.

From clanking and wailing in an abandoned house and strange lights on a Civil War battlefield to eerie voices heard on a tape recorder left on in a cemetery at night, there are thousands of haunted places. Why do some spirits of the dead remain on earth and what can be done about them?

Doors fly open by themselves, dishes fall from shelves, stones fall from the sky: these are obvious signs that a poltergeist may be near. For centuries, these mischievous and often malevolent spirits have terrorized people, who often find no protection from their evil. This book provides a history of poltergeist hauntings, highlights some well-known cases and examines what may truly be behind this dark and eerie paranormal phenomenon.