Sandra Holtgreve, born in 1989, is a doctoral researcher at Bielefeld University and part of the Research Training Group "World Politics". She studied Social Work, sociology, and Inter-American Studies. Her doctoral research deals with knowledge sociology and Social Work education. Karlson Preuß, born in 1988, is a doctoral researcher at Bielefeld University and part of the Research Training Group "World Politics". He studied philosophy, sociology, French and Comparative Constitutional Law and is currently working on his PhD in the field of Sociology of Law. Mathias Albert, born in 1967, is a professor of political science at Bielefeld University and Speaker of the Research Training Group "World Politics". In addition to his research in the history and sociology of world politics, he is active in youth studies (Shell Jugendstudie) and in polar research.