Books about Human-alien encounters -- Fiction (sorted by popularity)
- The Very Secret Agent Mari Wolf 65 downloads
- The Hitch Hikers Vernon L. McCain 65 downloads
- Survival Type Jesse F. Bone 65 downloads
- Angel's Egg Edgar Pangborn 65 downloads
- The Next Time We Die Robert Moore Williams 65 downloads
- Outpost on Io Leigh Brackett 65 downloads
- Battle for the Stars Edmond Hamilton 65 downloads
- Mo-Sanshon! Bryce Walton 65 downloads
- Menace of the Mists H. L. Gold 65 downloads
- The overlord's thumb Robert Silverberg 65 downloads
- Spacemen lost George O. Smith 65 downloads
- Lesson for Today Joel Nydahl 65 downloads
- Today is Forever Roger D. Aycock 64 downloads
- Little men of space Frank Belknap Long 64 downloads
- The Sword of Johnny Damokles Hugh Frazier Parker 64 downloads
- Cultural Exchange Jesse F. Bone 64 downloads
- The Little Pets of Arkkhan Bill Garson 64 downloads
- Secret of the Martians Paul W. Fairman 64 downloads
- Amour, Amour, Dear Planet! Mark Clutter 64 downloads
- Peril of the Blue World Robert Abernathy 64 downloads
- The Inhabited Richard Wilson 64 downloads
- Lair of the Dragonbird Robert Silverberg 64 downloads
- Lunar Station Harl Vincent 64 downloads
- A Zloor for Your Trouble! Mack Reynolds 64 downloads
- Gravy Train Daniel F. Galouye 64 downloads