The study of human behavior, social relationships, and culture is termed as sociology. It is a branch of social science which uses investigative and analytic techniques to develop knowledge about social order and change. Some of the prominent theories which define the subject of sociology are functionalism, structuralism, utilitarianism and conflict theory. Its various subfields comprise cultural studies, criminology, media studies, economic sociology, industrial relations, human ecology, etc. Primary areas of sociological research encompass social mobility, law, gender studies, social stratification and deviance. The research methods used within this field can be broadly categorized into qualitative and quantitative methods. Some of the methods used within this discipline include longitudinal study, experimental research, program evaluation and content analysis. Sociology finds applications across various fields such as medicine, education, military and control systems. The various sub-fields of sociology along with the technological progress that have future implications are glanced at in this book. While understanding the long-term perspectives of the topics, it makes an effort in highlighting their impact as a modern tool for the growth of the discipline. The book is appropriate for those seeking detailed information in this area.