This book examines a number of interesting psychological phenomena that influence human behavior in seemingly irrational ways. The authors discuss loss aversion, or how people go to great lengths to avoid losing. They discuss a diagnosis bias in which people make a diagnosis, such as they like someone, then go out of their way to support that conclusion, and are unable to reevaluate or change that incorrect diagnosis. The authors discuss the chameleon effect in which people behave like their labels, such as a woman described as beautiful acting more beautifully as a result.
Source: Sway: The Irresistible Pull Of Irrational Behavior. By Ori Brafman and Rom Brafman, 2008, Doubleday, NY, ISBN: 978-0-385-52438-4