Synopsis With different definitions of sociology terms given by various sociological writers the book aims to understand society. A society is made up of different type of institutions like political, religious, economic and family, where family is considered as the smallest unit of society. With time society faced many social change and with that social problems also occurred. Society is divided into different sections and each section work to overcome the social problems. Social planning is also important to avoid social problems. This book is meant for teachers, students and general readers.