Once in a while, I come across a book that literally changes the trajectory of my thinking.  As Joe has noted in his post, he thought highly of the book, The Halo Effect, by Phil Rosenzweig and recommended I read it.  It is a book that reminds you to be skeptical about the claims we hear in business and about business every day.  The delusions outlined by the author are powerful and very practical.  Pick up a copy, you won't regret it. 

-Jason