Second Foundation
Isaac Asimov
Foundation (3)
The Forever War
Joe Haldeman
The Forever War (1)
The Mote in God's Eye
Larry Niven & Jerry Pournelle
The Dosadi Experiment
harry
Children of Ruin
Adrian Tchaikovsky
Children of Time (2)
Children of Time
Children of Time (1)
Seveneves
Neal Stephenson