I realized after I got this book for my birthday that I'd seen one of Gladwell's other books, The Tipping Point. I only had a chance to read the back, but it sounded interesting. And if Blink is any indication, Gladwell is a capable author who communicates his ideas well.
Blink explains how our brains are designed to process information rapidly, behind the scenes, and this often results in an unconscious change in our actions before we notice or can explain the behavior. This is often termed intuition. Gladwell presents many arguments for the value of "rapid cognition," although he does warn of the dangers of always listening to initial thoughts. Altogether Blink is worth reading, and I'd like to read some of Gladwell's other works.