• Serial Killer Investigations
• Strange Powers
• Tree by Tolkien
• Afterlife
• The Essential Colin Wilson
• Beyond the Occult
• From Atlantis to the Sphinx
• Lifeforce
• Poltergeist: A Classic Study in Destructive Haunting
• The Mammoth Encyclopedia of Unsolved Mysteries
• The Strange Life of P. D. Ouspensky
• Ritual in the Dark
• Supernatural
• The Outsider
• A Criminal History of Mankind
• The Atlantis Blueprint
• World Famous Cults and Fanatics
• The Serial Killers: A Study in the Psychology of Violence
• Alien Dawn: A Classic Investigation into the Contact Experience