In a business context, case studies are often used to showcase successful projects or initiatives, highlighting the benefits of a particular product, service, or strategy. Case studies can be presented in various formats, such as written reports, videos, or presentations.

It typically includes an in-depth examination of a specific case or scenario, including the background, key issues, and outcomes. They often involve qualitative research methods, such as interviews, observations, and document analysis, and can provide insights into complex problems and how they were addressed or resolved. 

Case studies can be useful for businesses to help educate potential customers on the ways that they can solve problems as well as offering an alternative way to showcase positive customer experiences. You can view a few examples here