Clinical social workers represent the largest group of behavioral health practitioners in the nation. Clinical social work is a specialty practice area of social work that has a primary focus on the mental, emotional, and behavioral well-being of individuals, couples, families, and groups. It centers on a holistic approach to psychotherapy and the client’s relationship to their environment. Clinical social work views the client’s relationship with their environment as essential to treatment planning. Individual, couples, group, and family therapy are treatment modalities that focus on the assessment, diagnosis, and treatment of mental, emotional, behavioral, and interpersonal disturbances. Social workers who provide these services are required to be licensed or certified at the clinical level in their state of practice. Clinical social workers are essential to a variety of client-centered settings, including community mental health centers, hospitals, substance use treatment and recovery programs, schools, primary health care centers, child welfare agencies, aging services, employee assistance programs, and private practice settings.