David Walker, politics lecturer at Newcastle University, has been teaching courses on political theory, socialism, and Marxism for over 20 years. His authored publications include the book Marx, Methodology and Science, articles for the journal Studies in Marxism and a booklet on historical materialism for British A-Level students. He also edited Twentieth-Century Marxism: A Global Introduction.

Timothy L. Seals is an adjunct professor of Hebrew Bible at the Claremont School of Theology.