Leonard Williams is Professor Emeritus of Political Science at Manchester University in North Manchester, Indiana. He also taught at Georgetown University in Qatar and Texas Tech University. He authored Black Blocks, White Squares: Crosswords With an Anarchist Edge (2021) and American Liberalism and Ideological Change (1997). Moreover, he co-edited, with Benjamin Franks and Nathan Jun, Anarchism: A Conceptual Approach (Routledge, 2018) and, with Joseph Losco, Political Theory: Classic and Contemporary Readings (1992).

Benjamin Franks is Senior Lecturer in Social and Political Philosophy at the University of Glasgow's Dumfries Campus. He is the author of Anarchisms, Postanarchisms and Ethics (2020) and Rebel Alliances: The Means and Ends of Contemporary British Anarchisms (2006) and the co-author of Environmental Ethics and Behaviour Change (Routledge, 2016). Also, he co-edited, with Nathan Jun and Leonard Williams, Anarchism: A Conceptual Approach (Routledge, 2018).