The document discusses market segmentation, which is the process of dividing the market into subsets of consumers based on common characteristics. Segmentation is the first step in a three-phase marketing strategy and benefits both marketers and consumers. Some common bases used for segmentation include geographic, demographic, psychographic, behavioral, and socio-cultural factors. The document then provides details about the VALS (values and lifestyle) segmentation scheme and describes the characteristics and purchasing behaviors of its eight consumer groups: Innovators, Thinkers, Believers, Achievers, Strivers, Experience Seekers, Makers, and Survivors.