This document discusses segmentation, targeting, and positioning in marketing. It defines segmentation as dividing the market into groups with distinct needs, and discusses the common bases used for segmentation including geographic, demographic, psychographic, and behavioral factors. Targeting involves selecting specific segments to target with marketing efforts. Positioning refers to how a product is perceived relative to competitors, and involves differentiating it through attributes, benefits, use, user type, quality or price positioning. The key to effective positioning is choosing strong, distinctive competitive advantages to communicate to customers.