In Plain Sight: An investigation into UFOs and impossible science ~ Ross Coulthart
The Invisible College: What a Group of Scientists Has Discovered about UFO Influence on the Human Race ~ Jacques Vallee
Identified Flying Objects: A Multidisciplinary Scientific Approach to the UFO Phenomenon ~ Michael Masters
Skinwalkers at the Pentagon: An Insiders’ Account of the Secret Government UFO Program ~ James Lacatski, Colm Kelleher, George Knapp
Contact With Beings of Light ~ Peter Guttilla
Passport to Magonia: From Folklore to Flying Saucers ~ Jacques Vallee
The Believer: Alien Encounters, Hard Science, and the Passion of John Mack ~ Ralph Blumenthal
Beyond UFOs: The Science of Consciousness & Contact with Non Human Intelligence (VOLUME ONE) ~ Rey Hernandez et al
TRINITY: The Best-Kept Secret ~ Jacques Vallee & Paola Harris
Transformation: Book II of the Communion Series ~ Whitley Strieber
Operation Trojan Horse: The Classic Breakthrough Study of UFOs ~ John Keel
The Cryptoterrestrials: A Meditation on Indigenous Humanoids and the Aliens Among Us ~ Mac Tonnies
The Dual Soul Connection: The Alien Agenda for Human Advancement ~ Suzy Hansen & Rudy Shield
Confession: Our Hidden Alien Encounters Revealed ~ Robert Hastings & Bob Jacobs