Synopsis Habermas is regarded as one of the most important contemporary figures in the Frankfurt School of neo-Marxisist critical sociology. His ideas are used not only to explore philosophical and theoretical issues, but also in analytical studies o communications and media in society, and the sociology of law and politics. His synthesized thinking makes him one of the most influential and often quoted contemporary social theorists and philosophers. It is hope that this work will stimulate researchers, and professionals to execute researches in the area of critical sociology.