Books about Human-alien encounters -- Fiction (sorted alphabetically)
- Earthmen Die Hard! Richard O. Lewis
- End as a Hero Keith Laumer
- Enormous Word William Oberfield
- Escape Mechanism Charles E. Fritch
- Es Percipi Stephen Marlowe
- eternal quest Joseph Gilbert
- expendables A. E. Van Vogt
- Export Commodity Irving E. Cox
- eye for the ladies Stephen Marlowe
- Faces Outside Bruce McAllister
- Farewell message David Mason
- Feet of Clay Robert Hoskins
- Felony James Causey
- Fine Feathers George O. Smith
- Firegod Algis Budrys
- First Lensman E. E. Smith
- Fish Fry Arnold Marmor
- Five Hells of Orion Frederik Pohl
- Flame Breathers Ray Cummings
- Fog of the Forgotten Basil Wells
- Fool David Mason
- Founding Father Jesse F. Bone
- Friendly Killers S. M. Tenneshaw
- Frightful Ones Richard Maples
- From outer space Robert Zacks