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
- 1,014
- Earliest
- 1687
- to 2026
- Read free
- 20%
- 201 with public full text
- With covers
- 56%
How books qualify
- Query + metadata match938
- Metadata match68
- 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
- Fiction319
- Science fiction255
- Extraterrestrial beings242
- Human-alien encounters220
- Unidentified flying objects200
- UFO127
- Alien abduction100
- Short Stories92
- Physical Sciences86
- Social Sciences83
- Astronomy and Astrophysics82
- Physics and Astronomy82
- Life on other planets79
- Space Science and Extraterrestrial Life78
- Children's fiction77
- Fiction, science fiction, general77
- Sightings and encounters77
- Juvenile fiction72
- History68
- Philosophy67
- Psychology67
- Extraterrestrial beings, fiction60
- Social Psychology52
- 未確認飛行物体46
Top languages
- English752 · 74%
- German80 · 8%
- Japanese48 · 5%
- Dutch29 · 3%
- Italian21 · 2%
Notable authors
All authors- Jacques Vallee14 in this tradition15 books
- Katherine Applegate11 books
- Virgil Finlay8 in this tradition12 books
- Bernard Le Bovier de Fontenelle8 in this tradition11 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
- 南山, 宏5 in this tradition9 books
1,014 books
Parapsychology and contemporary science
Andrei Dubrov, V. N. Pushkin
1982
Parapsychology, frontier science of the mind : a survey of the field, the methods, and the facts of ESP and PK research
J. B. Rhine, J. G. Pratt
1957
Pre-Existence and Reincarnation
Wincenty Lutosławski
1928
Preliminary assessment
United States Office of the Director of National Intelligence
2021
Research in Parapsychology 1989
Linda A. Henkel, John R. Palmer
1990
Return from death: An exploration of the near-death experience
Margot Grey
1985
Science and the Near-Death Experience: How Consciousness Survives Death
Chris Carter
2010
Science, Culture and the Search for Life on Other Worlds
John W. Traphagan
2016
Some kind of heavenly fire
Setanta Books
2020
Space, gravity, and the flying saucer
Leonard G Cramp
1954
The Alien world
Peter Brookesmith
1984
The Allende letters
Brad Steiger, Joan Whritenour
1968
The Bible and flying saucers
Barry H Downing
1968
The Case for the UFO: Unidentified Flying Objects
M. K. Jessup, Frank Edwards
1955
The Social Relations of Physics, Mysticism, and Mathematics
Sal Restivo
1983
The amazing Mr. Lutherworth
Desmond Leslie
1958
The extraterrestrial contact movement
George M. Eberhαrt
1986
The flying saucer conspiracy
Donald E Keyhoe
1955
The flying saucer reader
Jay David
1967
UFOs and the extraterrestrial contact movement : a bibliography
George M. Eberhαrt
1986
Understanding The Dark Side: Western Demonology, Satanic Panics And Alien Abduction
Christopher Partridge
2006
Unidentified Flying Objects
Isaac Asimov, James C. Collins
1989
Unidentified Flying Objects
Clare Gurney, Gene Gurney
1970
Unidentified flying objects and extraterrestrial life
C. A. Marsh
1996