This document discusses market segmentation. It defines segmentation as dividing the market into homogeneous groups based on common characteristics. The key benefits of segmentation are identifying new product opportunities, designing optimal marketing mixes, and improving resource allocation. Common bases of segmentation include geographic, demographic, psychographic, and behavioral factors. The document then discusses a case study of Nivea Sun using attitudinal segmentation to identify five consumer segments in the UK sun care market. This allowed Nivea Sun to better meet consumer needs through innovative products and communications, helping them achieve their brand vision.