Publisher`s Weekly Starred Review. Best-selling author Gladwell (The Tipping Point) has a dazzling ability to find commonality in disparate fields of study. As he displays again in this entertaining and illuminating look at how we make snap judgments-about people`s intentions, the authenticity of a work of art, even military strategy-he can parse for general readers the intricacies of fascinating but little-known fields like professional food tasting (why does Coke taste different from Pepsi?). Gladwell`s conclusion, after studying how people make instant decisions in a wide range of fields from psychology to police work, is that we can make better instant judgments by training our mind and senses to focus on the most relevant facts-and that less input (as long as it`s the right input) is better than more. Perhaps the most stunning example he gives of this counterintuitive truth is the most expensive war game ever conducted by the Pentagon, in which a wily marine officer, playing "