Case - a conveyable container for carrying a number of objects; "the musicians still left their instrument cases backstage" portfolio - a considerable, flat, skinny case for carrying free papers or drawings or maps; commonly leather-based; "he remembered her because she was carrying a sizable portfolio" The list of Recommendations https://troyjqumd.kylieblog.com/36442130/hbr-case-study-analysis-things-to-know-before-you-buy