Books about Human-alien encounters -- Fiction (sorted by popularity)
- The Very Secret Agent Mari Wolf 43 downloads
- Vocation George O. Smith 43 downloads
- The Madcap Metalloids Verne Athanas 43 downloads
- Pogo Planet Donald A. Wollheim 43 downloads
- The Birds of Lorrane William R. Doede 43 downloads
- Needler Randall Garrett 43 downloads
- The Gift Bearer Charles L. Fontenay 43 downloads
- Brknk's Bounty Jerry Sohl 43 downloads
- Laboratory Jerome Bixby 42 downloads
- Anything You Can Do ... Randall Garrett 42 downloads
- Rx Alan Edward Nourse 42 downloads
- Star of Panadur Henry Hasse and Albert dePina 42 downloads
- Vandals of the Void Robert Wilson 42 downloads
- The Serpent River Don Wilcox 42 downloads
- Redevelopment George O. Smith 42 downloads
- As It Was Paul L. Payne 42 downloads
- The night of no moon H. B. Fyfe 42 downloads
- The Inhabited Richard Wilson 42 downloads
- The Gravity Business James E. Gunn 42 downloads
- Destination—Death Wilbur S. Peacock 42 downloads
- Homecoming Horde Robert Silverberg 41 downloads
- Special Delivery Kris Neville 41 downloads
- The Crowded Colony Jerome Bixby 41 downloads
- The Conquistadors Come Mary Elizabeth Counselman 41 downloads
- Firegod Algis Budrys 41 downloads