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
The coming of Tan
Riley L. Martin, C-Qua T. Wann, O-Qua T. Wann
1995
The contact has begun
Phillip H. Krapf
1998
The day after Roswell
Philip J. Corso, William J. Birnes
1997
The divine blueprint
Robert Perala
1998
The eighth tower
John A. Keel
1975
The energy grid
Bruce L. Cathie
1990
The gripping hand
Larry Niven, Jerry Pournelle, L.J. Ganser
1993
The hot gate
John Ringo
2011
The invisible college
Jacques Vallee
1975
The keepers
Jim Sparks
2007
The lives of Tao
Wesley Chu
2013
The madness season
C. S. Friedman
1990
The modern myth, ancient astronauts and UFOs
Morris Goran
1978
The quantum connection
Travis S. Taylor
2005
The ultimate alien agenda
James L. Walden
1998
The uninvited
Nick Pope
1997
The watchers
Raymond E. Fowler
1990
They knew too much about flying saucers
Gray Barker
1956
They walked like men
Clifford D. Simak
1962
Time travelers from our future
Bruce Goldberg
1998
Transformation
Whitley Strieber
1988
Transformer
Gregor Jansen, Mischa Kuball
2018
Transit
Edmund Cooper
1964
True Stories of Alien Abduction
Stanton T Friedman, Kathleen Marden
2014