Books about Human-alien encounters -- Fiction (sorted by popularity)
- Once a Greech Evelyn E. Smith 60 downloads
- The leaf Robert F. Young 60 downloads
- Farewell message David Mason 60 downloads
- The Test Colony Winston K. Marks 59 downloads
- Always a Qurono Jim Harmon 59 downloads
- The Last Martian Ray Van Houten 59 downloads
- The hellflower George O. Smith 59 downloads
- Woman from another planet Frank Belknap Long 59 downloads
- Savage Galahad Bryce Walton 59 downloads
- Dumbwaiter James Stamers 58 downloads
- "Hey Ma, Where's Willie?" I. M. Bukstein 58 downloads
- A Gift For Terra Fox B. Holden 58 downloads
- Space brat Henry Slesar 58 downloads
- The passionate pitchman Stephen Marlowe 58 downloads
- Rough Beast Roger D. Aycock 58 downloads
- Summer Guests James H. Schmitz 58 downloads
- Trouble on Tycho Nelson S. Bond 58 downloads
- The Little Monsters Come Ray Cummings 58 downloads
- The invading asteroid Manly Wade Wellman 58 downloads
- Reign of the telepuppets Daniel F. Galouye 57 downloads
- The Third Little Green Man Damon Knight 57 downloads
- Hellflower George O. Smith 57 downloads
- Escape Mechanism Charles E. Fritch 57 downloads
- Goma's Follicles John De Courcy and Dorothy De Courcy 56 downloads
- Manners and Customs of the Thrid Murray Leinster 56 downloads