Case studies are used in a variety of disciplines, both as teaching and research tools. When looking for cases studies be aware that there are three types.
Crowe, S., Cresswell, K., Robertson, A., Huby, G., Avery, A., & Sheikh, A. (2011). The case study approach. BMC Medical Research Methodology, 11, 100. https://doi.org/10.1186/1471-2288-11-100