 American sociologist Robert K. Merton (1910–2003) dedicates a section of Social Theory and Social Structure (1949; revised and expanded, 1957 and 1968) to the study of the sociology of knowledge in Part III, titled "The Sociology of Knowledge and Mass Communications".Legitimation code theory (LCT) emerged as a framework for the study of knowledge and education and is now being used to analyse a growing range of social and cultural practices across increasingly different institutional and national contexts, both within and beyond education.It is an approach that builds primary on the work of Basil Bernstein and Pierre Bourdieu.