Books about Human-alien encounters -- Fiction (sorted by popularity)
- The thought-feeders R. R. Winterbotham 115 downloads
- Common Denominator John D. MacDonald 115 downloads
- Homecoming Horde Robert Silverberg 115 downloads
- The ordeal of Lancelot Biggs Nelson S. Bond 115 downloads
- Who Goes There? Charles H. Davis 115 downloads
- Problem on Balak Roger D. Aycock 115 downloads
- The Avenger Damon Knight 114 downloads
- The Anglers of Arz Roger D. Aycock 114 downloads
- Mr. Meek Plays Polo Clifford D. Simak 114 downloads
- Not Snow Nor Rain Miriam Allen De Ford 114 downloads
- Harwood's Vortex Robert Silverberg 114 downloads
- The Third Little Green Man Damon Knight 113 downloads
- The Sinister Invasion Edmond Hamilton 113 downloads
- The Tree of Life C. L. Moore 113 downloads
- A world to die for Sam Carson 112 downloads
- Arcturus Times Three Jack Sharkey 112 downloads
- The Gravity Business James E. Gunn 112 downloads
- A Transmutation of Muddles H. B. Fyfe 112 downloads
- Laboratory Jerome Bixby 112 downloads
- The Vegans Were Curious Winston K. Marks 112 downloads
- Contamination Crew Alan Edward Nourse 111 downloads
- Big Stupe Charles V. De Vet 111 downloads
- Green Grew the Lasses Ruth Laura Wainwright 111 downloads
- The way out Richard Rein Smith 111 downloads
- The Last Laugh Bryce Walton 111 downloads