Synopsis This book is a comprehensive study of Sociological thinkers and theories right from the emergence of Sociology as a discipline in Social Sciences. It refers to the vast analysis of different traditions of Sociology, viz., the European and the American. The book provides an objective assessment of the major theories of Auguste Comte, Karl Marx, Herbert Spencer, Emile Durkheim, Max Weber, Talcott Parsons and R.K. Merton. In addition to these theoretical traditions, it also highlights major contemporary Sociological Theories, from Phenomenology to Post-modernism. This volume describes how different theoretical orientations were developed, as also how the theory of Personal-Global Interaction emerges from these. The book studies all these topics in depth, with a review of concepts, and the theories of Sociology. Both teachers and students will find these discussions of various topics in the field of Sociological thought and theory fruitful.