Books about Human-alien encounters -- Fiction (sorted by popularity)
- Menace of the Mists H. L. Gold 42 downloads
- Come Into My Brain! Robert Silverberg 41 downloads
- As It Was Paul L. Payne 41 downloads
- The Mercurian Frank Belknap Long 41 downloads
- Laboratory Jerome Bixby 41 downloads
- When Whirlybirds Call Frank Banta 41 downloads
- A Matter of Ethics R. R. Winterbotham 41 downloads
- Asteroid of the Damned Frederik Pohl and Dirk Wylie 41 downloads
- Is That You Xeluchli? Dick Hetschel 40 downloads
- The Lights on Precipice Peak Stephen Tall 40 downloads
- Cosmic Tragedy Thomas S. Gardiner 40 downloads
- Satellite of Death Randall Garrett 40 downloads
- The Way Back Sam Moskowitz 40 downloads
- Restricted Tool Malcolm B. Morehart 40 downloads
- Get Out of My Body! Tom W. Harris 40 downloads
- Sidewinders From Sirius Fox B. Holden 40 downloads
- The Useless Bugbreeders James Stamers 40 downloads
- The Monster That Threatened the Universe R. R. Winterbotham 39 downloads
- Girl of the Silver Sphere J. Harvey Haggard 39 downloads
- A Matter of Taste Jr. L. J. Stecher 39 downloads
- Citadel of the Green Death Robert Emmett McDowell 39 downloads
- Combatman John Massie Davis 39 downloads
- Master Race Richard Ashby 39 downloads
- Project Hi-Psi Frank Riley 39 downloads
- World in a Mirror Albert Teichner 38 downloads