Books about Human-alien encounters -- Fiction (sorted by popularity)
- Always a Qurono Jim Harmon 86 downloads
- What's He Doing in There? Fritz Leiber 86 downloads
- Retief of the Red-Tape Mountain Keith Laumer 86 downloads
- The Burnt Planet William J. Brittain 86 downloads
- Learning Theory James V. McConnell 86 downloads
- And Then the Town Took Off Richard Wilson 86 downloads
- The Great Green Blight Robert Emmett McDowell 86 downloads
- Les Xipéhuz (French) aîné J.-H. Rosny and jeune J.-H. Rosny 86 downloads
- The Sweeper of Loray Robert Sheckley 85 downloads
- Mr. Meek Plays Polo Clifford D. Simak 85 downloads
- The Good Neighbors Edgar Pangborn 85 downloads
- The Little Monsters Come Ray Cummings 85 downloads
- Strange Exodus Robert Abernathy 85 downloads
- The Crystal Circe Henry Kuttner 85 downloads
- The way out Richard Rein Smith 85 downloads
- Der rote Stern: Ein utopischer Roman (German) A. Bogdanov 85 downloads
- The Plotters Richard S. Shaver 84 downloads
- The Vibration Wasps Frank Belknap Long 84 downloads
- Juggernaut of Space Ray Cummings 84 downloads
- The Hero Elaine Wilber 84 downloads
- Manners and Customs of the Thrid Murray Leinster 83 downloads
- A Transmutation of Muddles H. B. Fyfe 83 downloads
- A time to die Harold Calin 83 downloads
- Farewell message David Mason 83 downloads
- The Planet That Time Forgot Donald A. Wollheim 83 downloads