A Certificate of Advanced Study (CAS),[1] also called an Advanced Certificate (AC),[2][3][4] Certificate of Advanced Graduate Study (CAGS),[5] or a Certificate of Advanced Professional Studies (CAPS), is a post-Master's academic certificate designed for professional and non traditional students, as well as practitioners who seek a continuing education program to enhance their professional development in fields such as liberal arts,[6][7] education, library science,[8] software engineering,[9] area studies, data science,[3] public policy, and management.[10]