Books about Human-alien encounters -- Fiction (sorted by popularity)
- Earthmen Ask No Quarter! Fox B. Holden 57 downloads
- The Little Monsters Come Ray Cummings 57 downloads
- Prelude to Space Robert W. Haseltine 57 downloads
- Day of Wrath Bjarne Kirchhoff 57 downloads
- Routine for a Hornet Don Berry 57 downloads
- The Pacifists Charles E. Fritch 57 downloads
- The Ambassadors From Venus Kendell Foster Crossen 57 downloads
- Ticket to the Stars Raymond E. Banks 56 downloads
- The Frightful Ones Richard Maples 56 downloads
- The Next Time We Die Robert Moore Williams 56 downloads
- Threlkeld's Daughter James Bell 56 downloads
- The Time of Cold Mary Carlson 55 downloads
- The thought-feeders R. R. Winterbotham 55 downloads
- The Pure Observers B. J. Rogers 55 downloads
- A Planet Named Joe Evan Hunter 55 downloads
- The Very Secret Agent Mari Wolf 55 downloads
- Get Out of My Body! Tom W. Harris 55 downloads
- The Unprotected Species Melvin Sturgis 55 downloads
- Under the Skin Leslie Perri 54 downloads
- Beach Scene Marshall King 54 downloads
- Treasure of Triton Charles A. Baker 54 downloads
- From outer space Robert Zacks 54 downloads
- The Birds of Lorrane William R. Doede 53 downloads
- World in a Mirror Albert Teichner 53 downloads
- The Poors Harry Lorayne 52 downloads