[onion2k]

This seems like a similar idea to Julian Baggini's "Edge of Reason"[1]. In the book he investigates how we've become very bad at using reason (in the philosophical sense of the word) to examine things around us. I'm about 1/2 way through and I've been finding it very interesting indeed.

[1] http://yalebooks.co.uk/display.asp?k=9780300208238 - There's a brief interview with the author that introduces the book on there.