Foundation's Conscience
George Zebrowski
Foundation (1)
Trantor Falls
Harry Turtledove
Foundation (6.5)
The Originist
Orson Scott Card
Foundation (5.5)
Forward the Foundation
Isaac Asimov
Foundation (7)
Prelude to Foundation
Foundation (6)
Foundation and Earth
Foundation (5)
Foundation's Edge
Foundation (4)
The 1,000 Year Plan
Second Foundation
Foundation (3)
Foundation and Empire
Foundation (2)
Foundation
The Psychohistorians
The Foundation Trilogy (boxed set)