In this widely acclaimed New York Times? bestseller, Gladwell explores and brilliantly illuminates the tipping point phenomenon, and looks at why major changes in our society so often happen suddenly and unexpectedly. Just as a single sick person can start an epidemic of the flu, so too can a small but precisely targeted push cause a fashion trend, the popularity of a new product, or a drop in the crime rate. An intellectual adventure story and a road map to change, with a profoundly hopeful message that one imaginative person applying a well-placed lever can move the world.