Books about Human-alien encounters -- Fiction (sorted by popularity)
- And we sailed the mighty dark Frank Belknap Long 104 downloads
- Corpus earthling Louis Charbonneau 104 downloads
- Trouble on Tycho Nelson S. Bond 104 downloads
- The Klygha H. B. Fyfe 104 downloads
- Always a Qurono Jim Harmon 104 downloads
- The Sweeper of Loray Robert Sheckley 104 downloads
- Membership Drive Murray F. Yaco 103 downloads
- The Weirdest World R. A. Lafferty 103 downloads
- Tourists to Terra Mack Reynolds 103 downloads
- Venus Enslaved Manly Wade Wellman 103 downloads
- The Revolt of the Star Men Raymond Z. Gallun 102 downloads
- Collector's Item Evelyn E. Smith 102 downloads
- Ultimatum Roger D. Aycock 102 downloads
- The Inhabited Richard Wilson 102 downloads
- Heel Philip José Farmer 102 downloads
- Savage Galahad Bryce Walton 102 downloads
- Cargo to Callisto Jerome Bixby 102 downloads
- The Lunarian Professor and His Remarkable Revelations Concerning the Earth, the Moon and Mars James B. Alexander 101 downloads
- Restricted Tool Malcolm B. Morehart 101 downloads
- No Sons Left to Die! Hal Annas 100 downloads
- The Mercurian Frank Belknap Long 100 downloads
- The Fool David Mason 100 downloads
- The Polite People of Pudibundia R. A. Lafferty 100 downloads
- Unwelcomed Visitor Joseph Samachson 100 downloads
- Survival Type Jesse F. Bone 100 downloads