Predictably Irrational : The Hidden Forces That Shape Our Decisions by Dan Ariely

"Predictably Irrational is wildly original. It shows why--much more often than we usually care to admit--humans make foolish, and sometimes disastrous, mistakes. Ariely not only gives us a great read; he also makes us much wiser."- George Akerlof, 2001 Nobel Laureate in Economics, Koshland Professor of Economics, University of California at Berkeley