This document discusses market segmentation in marketing. It defines market segmentation as dividing the complete market into smaller subsets of consumers with similar tastes, demands, and preferences. It provides the basis for segmentation as income, age, marital status, and occupation. It lists the 8 steps in market segmentation and the main types as demographic, psychographic, behavioral, and geographic. It explains the significance of segmentation as increasing sales, enhancing profits, providing better opportunities for growth, and allowing for a better matching of customer needs.