This document discusses customer segmentation and the different ways customers can be categorized for marketing purposes. It outlines key demographic factors like age, gender, education level, and socioeconomic attributes that are used to segment customers. Psychographic factors related to lifestyles, interests and attitudes are also important. Customers can be further segmented by generation, geography, benefits sought from products, and their willingness to adopt new products as innovators, early adopters, early majority, late majority or laggards. Proper customer segmentation allows companies to better understand customer needs, improve products and marketing, and stay ahead of competitors.