Foundation
Isaac Asimov
Forward the Foundation
Prelude to Foundation
Foundation's Edge
Calculating God
Robert J. Sawyer
Hyperion
Dan Simmons
Old Man's War
John Scalzi
Stranger in a Strange Land
Robert A. Heinlein
Invasion of the Body Snatchers
Jack Finney
The Currents of Space
The Garden of Rama
Arthur C. Clarke;Gentry Lee