This document provides an introduction to social work, defining key terms and concepts. It discusses that social work aims to help individuals and communities through activities focused on social relationships and interactions. The three main functions of social work are restoring impaired social functioning, providing social and individual resources, and preventing social dysfunction. Social work utilizes restoration, rehabilitation, development, education, and prevention to achieve these aims. It also distinguishes social work from related fields like social welfare, sociology, psychiatry, psychology, and counseling.