UFOs: A History of Alien Activity from Sightings to Abductions to Global Threat: A History of Alien Activity from Sightings to Abductions to Global Threat

The UFO Files: The Canadian Connection Exposed

Roswell in the 21st Century

Alien Encounters

The Big Book of UFOs

The Government UFO Files: The Conspiracy of Cover-Up

Bigfoot: True Life Encounters with Legendary Ape-Men

Sasquatch: North America's Enduring Mystery

Sight Unseen: Science, UFO Invisibility, and Transgenic Beings

Haunted York

Alien Mysteries, Conspiracies and Cover-Ups

Poltergeists: And other hauntings

Crash at Corona: The U.S. Military Retrieval and Cover-up of a UFO

UFOs, ETs, and Alien Abductions: A Scientist Looks at the Evidence

The Canadian UFO Report: The Best Cases Revealed

Real Aliens, Space Beings, and Creatures from Other Worlds

The Roswell Dig Diaries

The UFO Dossier: 100 Years of Government Secrets, Conspiracies, and Cover-Ups

Walking Through Walls and Other Impossibilities: The Hybrid Agenda

The Presidents and UFOs: A Secret History from FDR to Obama