Isaac Asimov

Books
Foundation Foundation
Foundation
1991
Youth Youth
Youth
1992
Foundation and Empire Foundation and Empire
Foundation and Empire
1991
I, Robot I, Robot
I, Robot
1991
Prelude to Foundation Prelude to Foundation
Prelude to Foundation
1988
Second Foundation Second Foundation
Second Foundation
1991

Audiobooks
Foundation (Unabridged) Foundation (Unabridged)
Foundation (Unabridged)
2010
The Foundation Trilogy (Dramatized) The Foundation Trilogy (Dramatized)
The Foundation Trilogy (Dramatized)
2011
Foundation and Empire (Unabridged) Foundation and Empire (Unabridged)
Foundation and Empire (Unabridged)
2010
I, Robot (Unabridged) I, Robot (Unabridged)
I, Robot (Unabridged)
2004
Second Foundation (Unabridged) Second Foundation (Unabridged)
Second Foundation (Unabridged)
2010
Foundation's Edge (Unabridged) Foundation's Edge (Unabridged)
Foundation's Edge (Unabridged)
2011