Foundation and Empire
Isaac Asimov
Foundation (2)
Dune Saga - 16 - Hunters of Dune
Brian Herbert & Kevin J. Anderson
Dune Saga (16)
Direct Descent
Unknown
Dune Saga - 03 - Dune: The Battle of Corrin
Dune Saga (3)
Caves of Steel
R. Daneel Olivaw (1)