Synopsis This book presents a very comprehensive, lucid and, crips up-to-date information on the development, nature and scope of sociology, its key concepts, and the basic social institutions. It is divided into four sections: Section One: Sociology, Pioneers & Relationship with Other Social Sciences. Section Two: Methodology of Social Research. Section Three: Key Sociological Concepts. Section Four: Basic Institutions of Society. This book will be found useful and highly motivating both by students as well as teachers, and all those people in India and foreign countries who eager to know about Sociology and understand the sociological approach quickly, comprehensively and clearly and how it can help them to analyze and understand the human society in the 21st century.