UFO's/Aliens (non fiction)
2. 
Area 51: An Uncensored History of America's Top Secret Military Base
by:
Annie Jacobsen
3.86 avg rating — 10,397 ratings 
4. 
Unacknowledged: An Expose Of The World's Greatest Secret
by:
Steven M. Greer
4.07 avg rating — 1,103 ratings 
7. 
The 37th Parallel: The Secret Truth Behind America's UFO Highway
by:
Ben Mezrich
3.03 avg rating — 1,657 ratings 7. 
Encounter in Rendlesham Forest: The Inside Story of the World's Best-Documented UFO Incident
by:
Nick Pope
3.96 avg rating — 523 ratings 
12. 
UFOs and Diamagnetism: Correlations of UFO and Scientific Observations
by:
Eugene H. Burt
liked it 3.00 avg rating — 1 rating 
14. 
Flying Saucers: A Modern Myth of Things Seen in the Skies
by:
C.G. Jung
3.76 avg rating — 650 ratings 
16. 
Wonders in the Sky: Unexplained Aerial Objects from Antiquity to Modern Times 3.88 avg rating — 267 ratings
18. 
Aliens Are With Us: What I Learned From Aliens Visiting Me Over One Hundred Times Spanning Fifty Years
by:
Bill Rountree
it was ok 2.00 avg rating — 1 rating 21. 
Roswell: The Ultimate Cold Case: Eyewitness Testimony and Evidence of Contact and the Cover-Up
by:
Thomas J. Carey
3.97 avg rating — 61 ratings 21. 
Alien Agenda: Investigating the Extraterrestrial Presence Among Us
by:
Jim Marrs
3.99 avg rating — 1,095 ratings 
21. 
The Resonance of Unseen Things: Poetics, Power, Captivity, and UFOs in the American Uncanny
by:
Susan Lepselter
4.20 avg rating — 154 ratings 25. 
Skinwalkers at the Pentagon: An Insiders' Account of the Secret Government UFO Program
by:
Colm A. Kelleher
4.08 avg rating — 1,713 ratings 
25. 
More Encounters with Star People: Urban American Indians Tells Their Stories 4.65 avg rating — 126 ratings
28. 
The CIA UFO Papers: 50 Years of Government Secrets and Cover-Ups
by:
Dan Wright
3.58 avg rating — 96 ratings 28. 
The Close Encounters Man: How One Man Made the World Believe in UFOs
by:
Mark O'Connell
really liked it 4.00 avg rating — 303 ratings 
32. 
A Call at Dawn: A Message From Our Brothers of the Planets Pluto and Jupiter
by:
Kelvin Rowe
0.00 avg rating — 0 ratings 
34. 
Final Events & the Secret Government Group on Demonic UFOs & the Afterlife
by:
Nick Redfern
3.95 avg rating — 294 ratings 34. 
Quest for the Invisibles: The Discovery of Unseen Craft and Beings that Reside in the Invisible World All Around Us
by:
Nik Hayes
really liked it 4.00 avg rating — 1 rating 36. 
36. 
Monster Hunters: On the Trail with Ghost Hunters, Bigfooters, Ufologists, and Other Paranormal Investigators
by:
Tea Krulos
3.52 avg rating — 162 ratings 36. 
Something Stinks: UFOs, Aliens and Other Sources of Supernatural Smells
by:
Chip Norton
0.00 avg rating — 0 ratings 39. 
Stan Analisys: Significance of the Romanek equations
by:
Cristian Gramosa
it was amazing 5.00 avg rating — 1 rating 40. 
Ufo George Adamski Their Man on Earth (Ufo Factbooks Series)
by:
Lou Zinsstag
0.00 avg rating — 0 ratings 40. 
Initiated: UAP, Dreams, Depression, Delusions, Shadow People, Psychosis, Sleep Paralysis, and Pandemics
by:
Matthew Roberts
3.85 avg rating — 73 ratings 40. 
Aliens: The World's Leading Scientists on the Search for Extraterrestrial Life
by:
Jim Al-Khalili
3.78 avg rating — 1,269 ratings 
43. 
The Believer: Alien Encounters, Hard Science, and the Passion of John Mack
by:
Ralph Blumenthal
3.91 avg rating — 374 ratings 43. 
Extraterrestrials and the American Zeitgeist: Alien Contact Tales Since the 1950s 3.93 avg rating — 14 ratings
46. 
Walking Among Us: The Alien Plan to Control Humanity
by:
David M. Jacobs
3.81 avg rating — 284 ratings 
49. 
Passport to the Cosmos: Human Transformation and Alien Encounters
by:
John E. Mack
4.20 avg rating — 392 ratings 49. 
The Disinformation Guide to Ancient Aliens, Lost Civilizations, Astonishing Archaeology and Hidden History
by:
Preston Peet
3.76 avg rating — 95 ratings 
52. 
We Are the Children of the Stars: The Classic that Changed the Way We Look at Aliens
by:
Otto Binder
4.04 avg rating — 25 ratings 52. 
54. 
The Cryptoterrerstrials: A Meditation on Indigenous Humanoids and the Aliens Among Us
by:
Mac Tonnies
3.80 avg rating — 214 ratings 54. 
The World's Most Incredible Stories: The Best of Fortean Times
by:
Adam Sisman
3.68 avg rating — 38 ratings 
56. 
Charles Fort: The Man Who Invented the Supernatural
by:
Jim Steinmeyer
3.59 avg rating — 226 ratings 58. 
The Ancient Alien Question: A New Inquiry Into the Existence, Evidence, and Influence of Ancient Visitors
by:
Philip Coppens
3.91 avg rating — 932 ratings 
60. 
Space-Craft from Beyond Three Dimensions: A New Vista of the Entirety from which Emerges the UFO 0.00 avg rating — 0 ratings
62. 
Venus Speaks: Direct Revelation Regarding Flying Saucers and Life on Venus
by:
Cyril Richardson
0.00 avg rating — 0 ratings 
65. 
Flying Saucers Rock 'n' Roll: Conversations with Unjustly Obscure Rock 'n' Soul Eccentrics
by:
Jake Austen
3.74 avg rating — 23 ratings 67. 
The Gods Never Left Us: The Long Awaited Sequel to the Worldwide Best-seller Chariots of the Gods 3.74 avg rating — 649 ratings
67. 
UFOs AND THE TAXPAYER: Decoding Government Spending on the Unknown
by:
Richard Pérez
0.00 avg rating — 0 ratings 70. 
Reality Denied: Firsthand Experiences with Things that Can’t Happen – But Did 3.68 avg rating — 80 ratings
70. 
74. 
Wonders in the Sky: Unexplained Aerial Objects from Antiquity to Modern Times 3.88 avg rating — 267 ratings
78. 
Sekret Machines: Man: Sekret Machines Gods, Man, and War Volume 2
by:
Tom DeLonge
3.87 avg rating — 249 ratings 78. 
80. 
The Billy Meier Contacts Reports: Book 1: Contacts:1,2,3,4,6,7,9,10,11,18,37,38
by:
Billy Meier
4.60 avg rating — 10 ratings 81. 
IT’S NOT ALIENS, WORSE, IT’S US: Discovering Our Lost History
by:
Jared Murphy
0.00 avg rating — 0 ratings 
84. 
85. 
Cosmic Pulse of Life: The Revolutionary Biological Power Behind Ufo's 3.76 avg rating — 29 ratings
86. 
Firestorm: Dr. James E. McDonald's Fight for UFO Science
by:
Ann Druffel
4.67 avg rating — 15 ratings 87. 
Wmd: Angels, Devils, & The Media: The Extraterrestrial Control of Radio, Television, Film, and the Internet 0.00 avg rating — 0 ratings
88. 
Ancient Serpent Gods: The Alien Connection to Reptilian Dinosaurs
by:
B.E. Lewis
3.79 avg rating — 19 ratings 89. 
An Alien Harvest: Further Evidence Linking Animal Mutilations and Human Abductions to Alien Life Forms 4.23 avg rating — 43 ratings
90. 
Are we being watched?: True UFO sightings by children around the world
by:
Janet Bord
4.50 avg rating — 2 ratings 
92. 
The Wilson Papers: Genesis of the World's Most Fearsome Secret
by:
W.A. Harbinson
4.38 avg rating — 8 ratings 
