Books about Human-alien encounters -- Fiction (sorted by popularity)
- We're Civilized! Mark Clifton and Alex Apostolides 52 downloads
- Riya's Foundling Algis Budrys 52 downloads
- The Good Neighbors Edgar Pangborn 52 downloads
- Homecoming Horde Robert Silverberg 52 downloads
- Break a Leg Jim Harmon 52 downloads
- End as a Hero Keith Laumer 51 downloads
- The Sword of Johnny Damokles Hugh Frazier Parker 51 downloads
- White spot Murray Leinster 51 downloads
- Hellflower George O. Smith 51 downloads
- Quest of Thig Basil Wells 51 downloads
- Crisis on Titan James R. Adams 51 downloads
- The Snowbank Orbit Fritz Leiber 51 downloads
- The Burnt Planet William J. Brittain 51 downloads
- Prodigal Weapon Bill Garson 50 downloads
- The Third Little Green Man Damon Knight 50 downloads
- Girl of the Silver Sphere J. Harvey Haggard 50 downloads
- Needler Randall Garrett 50 downloads
- The overlord's thumb Robert Silverberg 49 downloads
- Manners and Customs of the Thrid Murray Leinster 49 downloads
- The Thought-Men of Mercury R. R. Winterbotham 49 downloads
- Peril of the Blue World Robert Abernathy 49 downloads
- Backlash Winston K. Marks 49 downloads
- The Watchers Roger D. Aycock 49 downloads
- The Venus Evil Chester S. Geier 49 downloads
- A Message From Our Sponsor Henry Slesar 49 downloads