If you are a social worker navigating the licensing landscape, you have likely encountered the alphabet soup of credentials: LMSW, LCSW, LSW, LISW, and more. The two most common master's-level licenses are the LMSW (Licensed Master Social Worker) and the LCSW (Licensed Clinical Social Worker). While both require a master's degree in social work, they represent different levels of licensure with distinct requirements, scopes of practice, and career implications.