Ambassador 1: Seeing Red

The Dark Forest

Ambassador 2: Raising Hell

Leviathan Wakes: Book 1 of the Expanse (now a Prime Original series)

Ambassador 3: Changing Fate

Death's End

Caliban's War: Book 2 of the Expanse (now a Prime Original series)

Ambassador 5: Blue Diamond Sky

Project Charon 4: Swarm

The Three-Body Problem

Ambassador 6: The Enemy Within

I, Robot

Trader's Honour

Foundation (Apple Series Tie-in Edition)

Ambassador 4: Coming Home

Abaddon's Gate: Book 3 of the Expanse (now a Prime Original series)

Permutation

Foundation and Empire