Books about Human-alien encounters -- Fiction (sorted by popularity)
- Space brat Henry Slesar 46 downloads
- The Last Victory Tom Godwin 46 downloads
- Today is Forever Roger D. Aycock 46 downloads
- The Inhabited Richard Wilson 46 downloads
- Menace From Vega Randall Garrett and Robert Silverberg 46 downloads
- Ticket to the Stars Raymond E. Banks 46 downloads
- Membership Drive Murray F. Yaco 45 downloads
- Corpus earthling Louis Charbonneau 45 downloads
- The Plagiarist From Rigel IV Evan Hunter 45 downloads
- The Last Laugh Bryce Walton 45 downloads
- Tourists to Terra Mack Reynolds 44 downloads
- Restricted Tool Malcolm B. Morehart 44 downloads
- Es Percipi Stephen Marlowe 44 downloads
- Pattern Robert H. Rohrer 44 downloads
- Traitor's Choice Paul W. Fairman 44 downloads
- Milk Run Robert Donald Locke 44 downloads
- The Cosmic Bluff Mack Reynolds 44 downloads
- Prison Planet Wilson Tucker 44 downloads
- Spacemen lost George O. Smith 44 downloads
- A world to die for Sam Carson 43 downloads
- The night of no moon H. B. Fyfe 43 downloads
- An Incident on Route 12 James H. Schmitz 43 downloads
- Export Commodity Irving E. Cox 43 downloads
- Car Pool Rosel George Brown 43 downloads
- Not Fit for Children Evelyn E. Smith 43 downloads