Books about Human-alien encounters -- Fiction (sorted by popularity)
- Coming of the Gods Chester Whitehorn 55 downloads
- Goddess of the Moon John Murray Reynolds 55 downloads
- Do Unto Others Mark Clifton 55 downloads
- Felony James Causey 55 downloads
- The Crystal Circe Henry Kuttner 55 downloads
- The Sweeper of Loray Robert Sheckley 54 downloads
- Little men of space Frank Belknap Long 54 downloads
- War-Gods of the Void Henry Kuttner 54 downloads
- Outpost on Io Leigh Brackett 54 downloads
- The way out Richard Rein Smith 54 downloads
- The Polite People of Pudibundia R. A. Lafferty 54 downloads
- Trouble on Tycho Nelson S. Bond 54 downloads
- The leaf Robert F. Young 54 downloads
- The Moon Maid Edgar Rice Burroughs 54 downloads
- Planet of Sand Murray Leinster 54 downloads
- Slaughter on Dornell IV Randall Garrett and Robert Silverberg 54 downloads
- Planet of the Gods Robert Moore Williams 53 downloads
- The Birds of Lorrane William R. Doede 53 downloads
- Rough Beast Roger D. Aycock 53 downloads
- The Revolt of the Star Men Raymond Z. Gallun 53 downloads
- Break a Leg Jim Harmon 52 downloads
- The Good Neighbors Edgar Pangborn 52 downloads
- Firegod Algis Budrys 52 downloads
- Summer Guests James H. Schmitz 52 downloads
- Redevelopment George O. Smith 52 downloads