Books about Human-alien encounters -- Fiction (sorted by popularity)
- The Fool David Mason 33 downloads
- Under the Skin Leslie Perri 33 downloads
- Home is the Spaceman George O. Smith 33 downloads
- Birthright April Smith 33 downloads
- Unwelcomed Visitor Joseph Samachson 33 downloads
- Monster of the Asteroid Ray Cummings 32 downloads
- The Time of Cold Mary Carlson 32 downloads
- Joe Carson's Weapon James R. Adams 32 downloads
- Thunder in the void Henry Kuttner 32 downloads
- Armageddon, 1970 Robert W. Krepps 32 downloads
- Come Into My Brain! Robert Silverberg 32 downloads
- The Very Secret Agent Mari Wolf 32 downloads
- Short Snorter Charles Einstein 32 downloads
- Threlkeld's Daughter James Bell 32 downloads
- Stellar Vengeance Frank Freeman 32 downloads
- Vandals of the Void Robert Wilson 32 downloads
- Spoilers of the Spaceways W. Bradford Martin 32 downloads
- The Victory of Klon Wilbur S. Peacock 31 downloads
- The Purple Pariah Byron Tustin 31 downloads
- Rhythm rides the rocket Bob Olsen 31 downloads
- A Planet Named Joe Evan Hunter 31 downloads
- When Whirlybirds Call Frank Banta 31 downloads
- Destination—Death Wilbur S. Peacock 31 downloads
- Proktols of Neptune Henry Hasse 31 downloads
- The Serpent River Don Wilcox 31 downloads