Crossing the Chasm (1991; rev. 1999) demonstrates the existence of distinct marketing challenges for each market segment in the life cycle of new technology-based products. A significant gulf -- the "chasm" -- exists between the market made up of early adopters and the markets of more pragmatic buyers. To cross the chasm, a product team must identify the needs of pragmatic buyers and deliver a "whole product" that more than meets those needs. This landmark book, part of the HarperBusiness Essentials series, shows just how to do that.