Books about Extraterrestrial beings -- Fiction (sorted by popularity)
- Birds of a Feather Robert Silverberg 55 downloads
- Planet of the Gods Robert Moore Williams 53 downloads
- The green girl Jack Williamson 53 downloads
- Rough Beast Roger D. Aycock 53 downloads
- The Birds of Lorrane William R. Doede 53 downloads
- Break a Leg Jim Harmon 52 downloads
- A Little Knowledge R. R. Winterbotham 52 downloads
- End as a Hero Keith Laumer 51 downloads
- Alien Offer Al Sevcik 50 downloads
- A trace of memory Keith Laumer 50 downloads
- A City Near Centaurus William R. Doede 49 downloads
- The Vegans Were Curious Winston K. Marks 48 downloads
- The Last Monster Gardner F. Fox 47 downloads
- Final Glory Henry Hasse 47 downloads
- Today is Forever Roger D. Aycock 46 downloads
- The Link Alan Edward Nourse 46 downloads
- Star of Rebirth Bernard Wall 44 downloads
- Circus Alan Edward Nourse 43 downloads
- Export Commodity Irving E. Cox 43 downloads
- Exploiter's End James Causey 43 downloads
- Not Fit for Children Evelyn E. Smith 43 downloads
- Success Story Earl Goodale 43 downloads
- The Almost-Men Irving E. Cox 43 downloads
- Alien Minds E. Everett Evans 42 downloads
- To Each His Own Jack Sharkey 42 downloads