This document discusses line and brand extension strategies. It defines line extension as introducing new products that are slightly different from existing product lines to attract new customers. Brand extension involves using an established brand name in a new product category. The document provides examples of different types of brand extensions, such as using the same brand for similar products in new forms, flavors, prices, or customer needs. It also discusses extending brands into new geographic areas or demographics. Maintaining a classic brand name over the long term is also mentioned.