The Edge of the Knife

Slaves to the Metal Horde (Unabridged): optional

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

H. Beam Piper & John J. McGuire: Lone Star Planet: An entire planet colonized by Texans. Can this cause problems? You becha pardner. But nothing the Texans can't handle

Omnilingual – Audiobook: Omnilingual: H. Beam Piper's Intriguing Science Fiction Story of Linguistic Discovery

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

Biddy And the Silver Man

Space Viking (Unabridged)

Michael Strogoff; Or, The Courier of The Czar – Audiobook: Michael Strogoff: A Thrilling Adventure of Loyalty and Espionage

Nemesis Games: Book 5 of the Expanse (now a Prime Original series)

Masters of Space: A Rip-Roaring Space Epic

The Galaxy Primes

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

Cibola Burn: Book 4 of the Expanse (now a Prime Original series)

Flowers For Algernon: The must-read literary science fiction masterpiece

Metro 2033: The novels that inspired the bestselling games