 At Columbia, he was the Joseph L. Buttenwieser Professor of Social Science, and along with Harrison White, Tilly played a key role in the emergence of the New York School of relational sociology.Over the course of his career, Tilly wrote more than 600 articles and 51 books and monographs.He was a member of the National Academy of Sciences, the American Academy of Arts and Sciences, the American Philosophical Society, the Sociological Research Association and the Ordre des Palmes Academiques.