Forward the Foundation

Foundation's Edge

Prelude to Foundation

The Robots of Dawn

The Naked Sun

Foundation and Empire

Caves of Steel

The Stars, Like Dust

The Currents of Space

Pebble in the Sky

Foundation (Apple Series Tie-in Edition)

I, Robot

The Second Foundation

Children of Dune: Book Three in the Dune Chronicles

Dune Messiah: Book Two in the Dune Chronicles

Dune: Book One in the Dune Chronicles