Judas Unchained
Peter F. Hamilton
Commonwealth Saga (2)
The Judas Valley
Randall Garrett & Robert Silverberg
Judge
Karen Traviss
Wess'har Wars (6)
Juggler of Worlds
Larry Niven & Edward M. Lerner
Fleet of Worlds (2)
Jump Pay
Rick Shelley
13th Spaceborne (3)
Jumper
Steven Gould
Jumper (1)
Jumping Off the Planet
David Gerrold
Starsiders / The Dingilliad (1)
Jupiter
Ben Bova
The Grand Tour (8)
Jupiter Trap
Ross Rocklynne
Colbie & Deverel (1)
Jupiter's Daughter
Tom Hyman
Jurassic Park
Michael Crichton
Jurassic Park (1)
Justice and Her Brothers
Virginia Hamilton
Justice Trilogy (1)
K-9 Corps
Kenneth von Gunden
K-9 Corps (1)
Cry Wolf
K-9 Corps (3)
The K-Factor
Harry Harrison
K-Machines
Damien Broderick
Players in the Contest of Worlds (2)
The Kalif's War
John Dalmas
Regiment (3)
Kane's Odyssey
Jack M. Bickham
Kaspar's Box
Jack L. Chalker
Tales of the Three Kings (3)