Books about Extraterrestrial beings -- Fiction (sorted by popularity)
- Man of Many Minds E. Everett Evans 115 downloads
- Rough Beast Roger D. Aycock 109 downloads
- Boarding party Robert F. Young 107 downloads
- End as a Hero Keith Laumer 106 downloads
- Keep Your Shape Robert Sheckley 106 downloads
- Meeting of the Minds Robert Sheckley 104 downloads
- Common Denominator John D. MacDonald 103 downloads
- Ten From Infinity Paul W. Fairman 103 downloads
- One Against the Moon Donald A. Wollheim 101 downloads
- Second Landing F. L. Wallace 99 downloads
- Not Fit for Children Evelyn E. Smith 98 downloads
- Savage Galahad Bryce Walton 98 downloads
- Alien Minds E. Everett Evans 96 downloads
- The Vegans Were Curious Winston K. Marks 96 downloads
- Operation Terror Murray Leinster 94 downloads
- A trace of memory Keith Laumer 94 downloads
- D-99: a science-fiction novel H. B. Fyfe 93 downloads
- Laboratory Jerome Bixby 93 downloads
- The Invader Alfred Coppel 93 downloads
- Amateur in Chancery George O. Smith 93 downloads
- The guest rites Robert Silverberg 91 downloads
- The Next Time We Die Robert Moore Williams 91 downloads
- Growing up on Big Muddy Charles V. De Vet 90 downloads
- The Klygha H. B. Fyfe 90 downloads
- Birds of a Feather Robert Silverberg 88 downloads