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Monster hunters : on the trail with ghost hunters, bigfooters, ufologists, and other paranormal investigators
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Crop circles
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What do we know about crop circles?
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The unexplained : mysteries, cryptids, ghosts, and UFOs
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Crop circles
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Unexplained! : 347 strange sightings, incredible occurrences, and puzzling physical phenomena
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A history of the unexplained
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Extreme alien stories
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Fire in the sky : the Walton experience
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That's creepy : spine-tingling facts that will test your creep-out factor
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Real-life mysteries : can you explain the unexplained?
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What do we know about alien abduction?
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The book of mysteries, magic and the unexplained
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UFOs
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The complete idiot's guide to the paranormal
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Psychic :true paranormal experiences
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The everyday psychic : a practical guide to activating your psychic gifts
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Catching cryptids : the scientific search for mysterious creatures
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Mysteries of the paranormal
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Alien abductions
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Alien visits : extraterrestrials, UFOs, and otherworldly encounters
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Extra sensory : the science and pseudoscience of telepathy and other powers of the mind
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What do we know about the Yeti?
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Alien landing sites
