The Case for God
Karen Armstrong
The Ringworld engineers
Larry Niven
Ringworld (2)
Vagabonding: An Uncommon Guide to the Art of Long-Term World ...
Rolf Potts
Man-Kzin Wars II
S. M. Stirling & Poul Anderson & Larry Niven & J. E. Pournelle
Man-Kzin Wars (2)
The Shadows Flinched
Michael Sarpen
Days Renewed (1)