One I consistently recommend is "Risk: The Science and Politics of Fear" by Dan Gardner, it's a fantastic insight into how we approach risk both individually and as a society.

It can be pretty revelatory.

http://www.amazon.com/RISK-SCIENCE-POLITICS-DAN-GARDNER/dp/0...

Amazon Link (in case ppl struggle to find it)

http://www.amazon.co.uk/Risk-Science-Politics-Dan-Gardner/dp...