# cover title author rating rating my rating read added Down arrow
 
3
Mutual Aid: A Factor of Evolution
4.20
not set
Sep 05, 2011
 
2
Civilization and Its Discontents
3.76
really liked it
not set
Sep 05, 2011
 
1
The Social Contract
3.75
liked it
not set
Sep 05, 2011
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