Books about Human-alien encounters -- Fiction (sorted by popularity)
- The Plotters Richard S. Shaver 62 downloads
- Planet of the Gods Robert Moore Williams 62 downloads
- The Good Seed Mack Reynolds 62 downloads
- Founding Father Jesse F. Bone 62 downloads
- The Invaders Murray Leinster 62 downloads
- Student Body F. L. Wallace 62 downloads
- Peace Norman Arkawy and Stanley Henig 62 downloads
- A Transmutation of Muddles H. B. Fyfe 61 downloads
- Earth Alert! Kris Neville 61 downloads
- What Inhabits Me? Robert Moore Williams 61 downloads
- The Onslaught from Rigel Fletcher Pratt 61 downloads
- Citadel of the Star Lords Edmond Hamilton 61 downloads
- The way out Richard Rein Smith 61 downloads
- The Sweeper of Loray Robert Sheckley 60 downloads
- Revolt in the Ice Empire Ray Cummings 60 downloads
- The Avenger Damon Knight 60 downloads
- Sunfire! Edmond Hamilton 60 downloads
- The leaf Robert F. Young 60 downloads
- A Matter of Protocol Jack Sharkey 60 downloads
- Farewell message David Mason 60 downloads
- The Great Green Blight Robert Emmett McDowell 60 downloads
- All That Earthly Remains C. C. MacApp 60 downloads
- Felony James Causey 60 downloads
- The Five Hells of Orion Frederik Pohl 60 downloads
- The Hero Elaine Wilber 60 downloads