Books about Human-alien encounters -- Fiction (sorted by popularity)
- Advance Agent Christopher Anvil 61 downloads
- Doorstep Keith Laumer 61 downloads
- Sweet Tooth Robert F. Young 61 downloads
- The Catspaw George O. Smith 61 downloads
- Juggernaut of Space Ray Cummings 61 downloads
- Spawning Ground Lester Del Rey 61 downloads
- The Course of Logic Lester Del Rey 61 downloads
- The invading asteroid Manly Wade Wellman 61 downloads
- The Martian Allen Glasser and A. R. Hilliard 61 downloads
- Cinderella Story Allen Kim Lang 61 downloads
- Communication Charles L. Fontenay 61 downloads
- The Way Back Sam Moskowitz 60 downloads
- Cultural Exchange Jesse F. Bone 60 downloads
- The Vilbar Party Evelyn E. Smith 60 downloads
- The hellflower George O. Smith 60 downloads
- Once a Greech Evelyn E. Smith 60 downloads
- Woman's touch Evelyn E. Smith 60 downloads
- A Gift from Earth Manly Banister 59 downloads
- Left hand, right hand James H. Schmitz 59 downloads
- Planet of No-Return Wilbur S. Peacock 59 downloads
- "Hey Ma, Where's Willie?" I. M. Bukstein 59 downloads
- The Little Monsters Come Ray Cummings 58 downloads
- A Bad Day for Vermin Keith Laumer 58 downloads
- Madmen of Mars Erik Fennel 58 downloads
- Boy meets dyevitza Robert F. Young 58 downloads