Books about Human-alien encounters -- Fiction (sorted by popularity)
- The Jameson Satellite Neil R. Jones 151 downloads
- The Onslaught from Rigel Fletcher Pratt 142 downloads
- Collector's Item Evelyn E. Smith 142 downloads
- Pogo Planet Donald A. Wollheim 141 downloads
- Angel's Egg Edgar Pangborn 141 downloads
- Lumen Camille Flammarion 138 downloads
- The Winds of Time James H. Schmitz 136 downloads
- The Aab Edward W. Ludwig 135 downloads
- The World That Couldn't Be Clifford D. Simak 135 downloads
- Der rote Stern: Ein utopischer Roman (German) A. Bogdanov 133 downloads
- Proxy Planeteers Edmond Hamilton 132 downloads
- Naudsonce H. Beam Piper 132 downloads
- The Vilbar Party Evelyn E. Smith 131 downloads
- The Ignoble Savages Evelyn E. Smith 131 downloads
- Accidental Death Peter Baily 130 downloads
- Sunfire! Edmond Hamilton 129 downloads
- The sky was full of ships Theodore Sturgeon 129 downloads
- Referent Ray Bradbury 129 downloads
- The Avenger Damon Knight 129 downloads
- Battle for the Stars Edmond Hamilton 127 downloads
- Spacemen lost George O. Smith 127 downloads
- Weapon Jesse F. Bone 125 downloads
- The Vanishing Venusians Leigh Brackett 125 downloads
- A Gift from Earth Manly Banister 125 downloads
- We're Civilized! Mark Clifton and Alex Apostolides 124 downloads