This document discusses product mix and product line analysis. It defines product mix as the set of all products offered for sale by a company, consisting of various product lines. A company's product mix has four dimensions: width, length, depth, and consistency. It then provides examples of Hindustan Unilever Limited's product mix and lines. The document outlines how product line analysis can help companies determine whether to add new lines or lengthen existing ones. It describes techniques for product line analysis like product maps and discusses strategies for product line stretching and filling. Lastly, it notes the importance of modernizing and periodically reviewing product lines.