Books about Human-alien encounters -- Fiction (sorted by popularity)
- The Devil of East Lupton, Vermont Murray Leinster 109 downloads
- Rockabye, Grady David Mason 109 downloads
- The Vanishing Venusians Leigh Brackett 109 downloads
- Retief of the Red-Tape Mountain Keith Laumer 108 downloads
- The Star Beast Damon Knight 108 downloads
- Lumen Camille Flammarion 107 downloads
- A Message From Our Sponsor Henry Slesar 107 downloads
- The Gravity Business James E. Gunn 106 downloads
- A Gift from Earth Manly Banister 106 downloads
- The Onslaught from Rigel Fletcher Pratt 106 downloads
- Aide Memoire Keith Laumer 105 downloads
- Stamped Caution Raymond Z. Gallun 105 downloads
- Colossus of Chaos Nelson S. Bond 105 downloads
- Weapon Jesse F. Bone 105 downloads
- Savage Galahad Bryce Walton 102 downloads
- My Fair Planet Evelyn E. Smith 102 downloads
- The Avenger Damon Knight 102 downloads
- Helpfully Yours Evelyn E. Smith 101 downloads
- The Sweeper of Loray Robert Sheckley 101 downloads
- Left hand, right hand James H. Schmitz 101 downloads
- Growing up on Big Muddy Charles V. De Vet 101 downloads
- The Five Hells of Orion Frederik Pohl 100 downloads
- A Guest of Ganymede C. C. MacApp 99 downloads
- Lair of the Dragonbird Robert Silverberg 98 downloads
- The Fool David Mason 97 downloads