Tradition 20 of 33
UFOs, extraterrestrials, and contact
UFO/UAP reports, flying saucers, extraterrestrial life, alien contact or abduction, contactees, and ancient-astronaut claims.
Membership means relevance, not endorsement.
- Books
- 1,058
- Earliest
- 1558
- to 2026
- Read free
- 22%
- 236 with public full text
- With covers
- 58%
How books qualify
- Query + metadata match981
- Metadata match69
- Query match7
- Source classification (retained through merging)1
Every placement records its evidence — the controlled subject queries that found the book at its sources and the bibliographic metadata retained through merging. Each book page shows its own. How the rationale system works.
Key subjects
- Fiction324
- Science fiction258
- Extraterrestrial beings247
- Human-alien encounters220
- Unidentified flying objects204
- UFO128
- Alien abduction101
- Short Stories92
- Physical Sciences86
- Social Sciences83
- Astronomy and Astrophysics82
- Physics and Astronomy82
- Life on other planets81
- Children's fiction80
- Sightings and encounters79
- Space Science and Extraterrestrial Life78
- Fiction, science fiction, general77
- Juvenile fiction74
- History69
- Philosophy68
- Psychology68
- Extraterrestrial beings, fiction62
- Social Psychology52
- 未確認飛行物体46
Top languages
- English771 · 73%
- German85 · 8%
- Japanese48 · 5%
- French31 · 3%
- Dutch29 · 3%
Notable authors
All authors- Jacques Vallee14 in this tradition15 books
- Katherine Applegate12 books
- M. de Fontenelle11 in this tradition12 books
- Bernard Le Bovier de Fontenelle9 in this tradition15 books
- Virgil Finlay8 in this tradition12 books
- Ed Emshwiller7 in this tradition11 books
- George Adamski7 books
- Orson Scott Card6 in this tradition8 books
- Pittacus Lore6 in this tradition7 books
- Donald E. Keyhoe6 books
- Marissa Meyer6 books
- Robert A. Heinlein6 books
1,058 books
Varieties of anomalous experience: Examining the scientific evidence.
2000
Watch the skies
James Patterson, Ned Rust
1978
We Are the Ants
Shaun David Hutchinson
2016
Whizziwig returns
Malorie Blackman
1999
Winter
Marissa Meyer
2015
Unidentified Flying Object for Contemporary Architecture: UFO’s Experiments Between Political Activism and Artistic Avant-garde
Beatrice Lampariello, Andrea Anselmo, Boris Hamzeian
2022
The Search for Extra Terrestrial Intelligence: A Philosophical Inquiry
David Lamb
2001
Zen Physics, The Science of Death, the Logic of Reincarnation
David J. Darling
1996
Dark White: aliens, abductions and the UFO obsession
Jim Schnabel
1994
Encyclopedia of the unexplained;: Magic, occultism and parapsychology
Richard Cavendish, J. B. Rhine
1974
Captured by aliens : the search for life and truth in a very large universe
Joel Achenbach
1999
Courageous (The Lost Fleet, Book 3)
Jack Campbell
Date unknown
In Advance of the Landing : Folk Concepts of Outer Space : Photographs by Douglas Curran
Terry Fenton
1981
The science of aliens
Clifford A Pickover
1998
いる?いない?のひみつ
並木, 伸一郎, おがた, たかはる, 小崎, 雄
2014Japanese
U.F.O.s
Helen B. Taussig
2000German
- Read free
Christoph Ernst, Jens Schröter: UFOs: Mediale Sichtungen
Sebastian Stoppe
2025German
De flygande tefaten
Frank Scully
1951Swedish
Extraterrestrial Life
Andrew Steane
2018
Nicola Berry and the petrifying problem with Princess Petronella
Liane Moriarty
2018
The Betty & Barney Hill alien abduction
Chris Bowman
2020
Alien Worlds
Diana Tumminia, Diana G. Tumminia
2007
Alien discussions
Annette Gabriel-Reinecke, Andrea Pritchard
1996
- Read free
Astral Projection: A Record of Out-of-the-Body Experiences
Oliver Fox
2016