Collapse: How Societies Choose to Fail or Succeed
Jared Diamond
Civilizations Rise and Fall (2)
Nowhere To Run
C.J. Box
Joe Pickett (10)
The Rowan
Anne McCaffrey
The Tower and the Hive (1)
White Mars; or, The Mind Set Free
Brian W. Aldiss
The Thorn of Dentonhill
Marshall Ryan Maresca
Maradaine Sequence (1)
A Murder of Mages
Maradaine Sequence (2)