Books about Extraterrestrial beings -- Fiction (sorted by popularity)
- The Onslaught from Rigel Fletcher Pratt 64 downloads
- 30-day wonder Richard Wilson 64 downloads
- The guest rites Robert Silverberg 63 downloads
- Planet of the Gods Robert Moore Williams 63 downloads
- A Bad Day for Vermin Keith Laumer 63 downloads
- Indirection Everett B. Cole 62 downloads
- Sweet Tooth Robert F. Young 62 downloads
- Out Around Rigel Robert H. Wilson 62 downloads
- Amateur in Chancery George O. Smith 62 downloads
- Savage Galahad Bryce Walton 61 downloads
- A Transmutation of Muddles H. B. Fyfe 61 downloads
- Extracts from the Galactick Almanack: Music Around the Universe Laurence M. Janifer 60 downloads
- The green girl Jack Williamson 60 downloads
- Citadel of the Star Lords Edmond Hamilton 59 downloads
- Birds of a Feather Robert Silverberg 59 downloads
- Rough Beast Roger D. Aycock 58 downloads
- The Invader Alfred Coppel 58 downloads
- On the Fourth Planet Jesse F. Bone 56 downloads
- The silent invaders Robert Silverberg 56 downloads
- Alien Offer Al Sevcik 56 downloads
- Community Property Alfred Coppel 55 downloads
- The Test Colony Winston K. Marks 55 downloads
- The Star Mouse Fredric Brown 54 downloads
- Founding Father Jesse F. Bone 54 downloads
- Operation Terror Murray Leinster 53 downloads