Books about Science fiction (sorted alphabetically)
- Identity Zoë Blade
- Identity George O. Smith
- időgép (Hungarian) H. G. Wells
- I, Executioner Terry Carr and Ted White
- If at First You Don't... John Brudy
- If You're Smart— Malcolm Jameson
- If You Was a Moklin Murray Leinster
- I, gardener Allen Kim Lang
- Ignatz Ron Goulart
- Ignoble Savages Evelyn E. Smith
- île à hélice (French) Jules Verne
- île mystérieuse (French) Jules Verne
- I Like Martian Music Charles E. Fritch
- I'll dream of you Henry Farrell
- I'll Kill You Tomorrow Helen Huber
- I'll See You in My Dreams William Campbell Gault
- Ilmasota: Tulevaisuuden kuvaus (Finnish) H. G. Wells
- Ilmojen valloittaja (Finnish) Jules Verne
- Image and the Likeness John Scott Campbell
- Image of Splendor Lu Kella
- Image of the Gods Alan Edward Nourse
- I'm a Stranger Here Myself Mack Reynolds
- Imitation of death Lester Del Rey
- Imitation of Earth James Stamers
- Imitator: A Novel Percival Pollard