The Invaders
Murray Leinster
The Involuntary Immortals
Rog Phillips
The Issahar Artifacts
J. F. Bone
It Could Be Anything
Keith Laumer
It Happened Tomorrow
Edward Leslie Stewart
Jack of No Trades
Charles Cottrell
Joyleg
Ward Moore & Avram Davidson
Jubilation, U.S.A.
G. L. Vandenburg
The Judas Valley
Randall Garrett & Robert Silverberg
The Jupiter Weapon
Charles L. Fontenay
Keep Out
Fredric Brown
The Kid from Kalamazoo
Eric Frank Russell
King Solomon's Ring
Roger Zelazny
A Lamp for Medusa
William Tenn
The Last Hero
Robert F. Young