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Science fiction (425)
Science fiction (399)
Life on other planets › Fiction (78)
Life on other planets › Fiction (69)
Space warfare › Fiction (31)
Space warfare › Fiction (30)
Science fiction, American (27)
Science fiction, American (21)
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Space medicine › Fiction (18)
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Fantastic fiction (14)
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first contact, science fiction (21)
medical, sf (20)
sf, space stations (20)
first contact, sf (19)
alien, earth, science fiction (15)
first contact, hard sf, science fiction (15)
aliens, military sf (15)
Subject: Human-alien encounters › Fiction
Sub-subjects
Human-alien encounters › Fiction (110 works)
Human-alien encounters › Fiction (88 works)
Books under this subject
- Childhood's End by Arthur C. Clarke (3,501 copies)
- The Forever War by Joe Haldeman (2,845 copies)
- Puppet Masters by Robert A. Heinlein (1,508 copies)
- Spin by Robert Charles Wilson (1,312 copies)
- Freedom's Challenge by Anne McCaffrey (903 copies)
- Calculating God by Robert J. Sawyer (760 copies)
- Cosmonaut Keep by Ken MacLeod (635 copies)
- The Fresco by Sheri S. Tepper (474 copies)
- A Hymn Before Battle by John Ringo (469 copies)
- The Man Who Fell to Earth by Walter Tevis (430 copies)
- Destroyer by C. J. Cherryh (413 copies)
- Gust Front by John Ringo (405 copies)
- Strangers from the Sky by Margaret Wander Bonanno (396 copies)
- Infinity Beach by Jack McDevitt (390 copies)
- Engine city by Ken MacLeod (379 copies)
- When the Devil Dances by John Ringo (374 copies)
- E.T. the Extra-Terrestrial by William Kotzwinkle (362 copies)
- Pretender by C. J. Cherryh (340 copies)
- Eifelheim by Michael Flynn (337 copies)
- Rollback by Robert J. Sawyer (336 copies)
- Axis by Robert Charles Wilson (321 copies)
- The Year of Our War by Steph Swainston (319 copies)
- Deliverer by C. J. Cherryh (299 copies)
- Survival by Julie E. Czerneda (292 copies)
- Natural History by Justina Robson (272 copies)
- The Draco Tavern by Larry Niven (265 copies)
- Halo: Ghosts of Onyx by Eric Nylund (265 copies)
- Probability Moon by Nancy Kress (263 copies)
- Agent to the Stars by John Scalzi (259 copies)
- Awaken Me Darkly by Gena Showalter (257 copies)
- Forge of Heaven by C. J. Cherryh (247 copies)
- Into the Looking Glass by John Ringo (246 copies)
- Homeward Bound by Harry Turtledove (232 copies)
- The Coming by Joe Haldeman (219 copies)
- Lady of Mazes by Karl Schroeder (217 copies)
- The Witling by Vernor Vinge (215 copies)
- The Hero by John Ringo (212 copies)
- In the Company of Others by Julie E. Czerneda (206 copies)
- The Disappeared: A Retrieval Artist Novel by Kristine Kathryn Rusch (205 copies)
- Slow Decay by Andy Lane (204 copies)
- Tale of the Thunderbolt by E.E. Knight (204 copies)
- Migration: Species Imperative #2 (Species Imperative) by Julie E. Czerneda (200 copies)
- Illegal Alien by Robert J. Sawyer (200 copies)
- Watch on the Rhine by John Ringo (199 copies)
- Planet X by Michael Jan Friedman (198 copies)
- Ragamuffin by Tobias S. Buckell (181 copies)
- Changing Vision by Julie E. Czerneda (179 copies)
- East of the Sun, West of the Moon by John Ringo (178 copies)
- Matriarch by Karen Traviss (176 copies)
- Probability Sun by Nancy Kress (175 copies)
( see all books )

