Starship Troopers
Robert A. Heinlein
Winter's King
Ursula K. le Guin
Hainish Cycle (5)
Order in Chaos
Jack Whyte
Templar Trilogy (3)
Mother of Death and Dawn
Carissa Broadbent
The War of Lost Hearts (3)
The Demon-Haunted World: Science as a Candle in the Dark
Carl Sagan