Clinical social work is a specialty practice area of social work that focuses on the assessment, diagnosis, treatment, and prevention of mental illness, emotional, and other behavioral disturbances. Clinical social workers provide a range of services to individuals, couples, families, and groups, including assessment, diagnosis, treatment planning, intervention/treatment, evaluation of outcomes, and case management. They operate from a “person-in-environment” perspective, considering not only their individual client but also the communities to which they belong, from family to vocational environments, and everything in between. Clinical social workers are trained to recognize that individual clients are not “islands unto themselves,” but are integral to a much larger system. They work in a variety of settings, including private practice, hospitals, community mental health, primary care, and agencies. Clinical social workers are required to be licensed or certified at the clinical level in their state of practice. They typically supervise and consult with professional colleagues and may engage in indirect practice (e.g., administration, research, teaching, writing) . Clinical social workers possess both a generalist social work foundation, as well as advanced knowledge of theory and practice related to prevention and treatment of psychological and behavioral disorders. They provide bio-psychosocial services, including diagnosis and clinical treatment (e.g., psychotherapy), that are reimbursable under health insurance programs and by every major self-insured company in America.