This document provides an introduction to sociology. It defines sociology as the scientific study of human social relationships and interactions. Sociology offers unique benefits like helping us understand social issues, how social systems shape our lives, why societies change, and providing theoretical perspectives to study social life. The history of sociology traces back to early philosophers but was established as a distinct field by Auguste Comte in the 19th century. Important early sociologists sought to bring social concerns to light and advance sociological understanding of society. Developing a sociological imagination allows one to understand how personal lives intersect with social forces. Careers that apply sociology are also listed.