A portfolio case is a protective folder or container designed to hold and display a collection of work, such as art, photography, or design projects. These cases come in various sizes and materials, often featuring clear sleeves or pockets to showcase individual pieces while keeping them safe from damage. Portfolio cases are commonly used by professionals and students in creative fields to present their work to potential clients, employers, or during interviews. They help organize and highlight the best pieces, making it easier to convey skills and creativity effectively.