Randall Collins (USA)

Randall Collins, Ph.D. (born 1941 in Knoxville, Tennessee) is an American sociologist who is a Sociology professor at the University of Pennsylvania as well as a member of the Advisory Editors Council of the Social Evolution & History journal. He is a leading contemporary social theorist whose areas of expertise include the macro-historical sociology of political and economic change; micro-sociology, including face-to-face interaction; and the sociology of intellectuals and social conflict. He is considered to be one of the leading non-Marxist conflict theorists in the United States, and served as the president of the American Sociological Association from 2010 to 2011.

Books: 

1975 - Conflict Sociology: Toward an Explanatory Science
1979 - The Credential Society: An Historical Sociology of Education and Stratification
1986 - Weberian Sociological Theory
1988 - Theoretical Sociology
1994 - Four Sociological Traditions
1998 - The Sociology of Philosophies
1999 - Macro-History
2004 - Interaction Ritual Chains
2008 - Violence: A Microsociological Theory

Source: https://en.wikipedia.org/wiki/Randall_Collins