Books about Extraterrestrial beings -- Fiction (sorted by popularity)
- Doorstep Keith Laumer 108 downloads
- Extracts from the Galactick Almanack: Music Around the Universe Laurence M. Janifer 100 downloads
- A Bad Day for Vermin Keith Laumer 100 downloads
- Exploiter's End James Causey 99 downloads
- Growing up on Big Muddy Charles V. De Vet 96 downloads
- Indirection Everett B. Cole 96 downloads
- Meeting of the Minds Robert Sheckley 92 downloads
- Planet of the Gods Robert Moore Williams 87 downloads
- Fifteen Hundred Miles an Hour Charles Dixon 87 downloads
- Operation Terror Murray Leinster 86 downloads
- The Course of Logic Lester Del Rey 86 downloads
- The silent invaders Robert Silverberg 85 downloads
- Birds of a Feather Robert Silverberg 84 downloads
- The Weather on Mercury Joseph Samachson 83 downloads
- Rough Beast Roger D. Aycock 82 downloads
- Sweet Tooth Robert F. Young 82 downloads
- Today is Forever Roger D. Aycock 81 downloads
- Amateur in Chancery George O. Smith 81 downloads
- End as a Hero Keith Laumer 81 downloads
- The Vegans Were Curious Winston K. Marks 81 downloads
- Common Denominator John D. MacDonald 80 downloads
- The Ultimate Eve H. Sanford Effron 80 downloads
- Founding Father Jesse F. Bone 80 downloads
- A Transmutation of Muddles H. B. Fyfe 79 downloads
- Feet of Clay Robert Hoskins 78 downloads