This document provides an overview of key concepts in sociology. It discusses how sociology developed out of scientific discoveries in the 17th and 18th centuries. Sociology is defined as the scientific study of human society and social behavior, from small interactions to large institutions. Both microsociology and macrosociology are used to study social phenomena at different levels. The sociological perspective and sociological imagination help understand how individual experiences are shaped by social forces. Culture, social structures, and globalization influence all aspects of society.