Foundation's Edge
Isaac Asimov
Foundation (6)
Rubber Soul
Spider Robinson
Imager's Intrigue: The Third Book of the Imager Portfolio
L. E. Modesitt, Jr.
Imager Portfolio (2)
The Other Side of Time
Keith Laumer
Imperium (2)
Sarah and Ramses Trilogy
Ali Vali
Silent Legacy
Ciarán Llachlan Leavitt