The document discusses Nivea's brand portfolio management issues and strategies for their various sub-brands. It analyzes the brand image and personality of Nivea Creme, the sources of brand equity, and how the core brand associations of caring and mildness were extended across different product classes like Nivea Sun, Nivea for Men, Nivea Shower and Bath, Nivea Hair, and Nivea Deodorant. The document also provides examples of marketing strategies and advertisements used for various sub-brands over time.