Books about Human-alien encounters -- Fiction (sorted by popularity)
- Planet of Sand Murray Leinster 73 downloads
- Felony James Causey 73 downloads
- The Useless Bugbreeders James Stamers 72 downloads
- The Lights on Precipice Peak Stephen Tall 72 downloads
- Fog of the Forgotten Basil Wells 72 downloads
- Get Out of My Body! Tom W. Harris 72 downloads
- The Enormous Word William Oberfield 72 downloads
- The Good Seed Mack Reynolds 71 downloads
- Survival Type Jesse F. Bone 71 downloads
- The Polite People of Pudibundia R. A. Lafferty 71 downloads
- Cinderella Story Allen Kim Lang 71 downloads
- The Mercurian Frank Belknap Long 71 downloads
- The Galactic Ghost Mack Reynolds 71 downloads
- Remember me, Kama! Walter Kubilius 71 downloads
- Routine for a Hornet Don Berry 70 downloads
- Growing up on Big Muddy Charles V. De Vet 70 downloads
- Summer Guests James H. Schmitz 70 downloads
- Peril of the Blue World Robert Abernathy 70 downloads
- Coming of the Gods Chester Whitehorn 70 downloads
- It Hayden Howard 70 downloads
- Lorelei Charles V. De Vet 70 downloads
- Joe Carson's Weapon James R. Adams 69 downloads
- The eternal quest Joseph Gilbert 69 downloads
- Boarding party Robert F. Young 69 downloads
- The Planet That Time Forgot Donald A. Wollheim 69 downloads