Malcolm Schofield is Emeritus Professor of Ancient Philosophy and a Fellow of St John's College, Cambridge. He has been one of the leading scholars worldwide in the study of ancient Greek and Roman philosophy for the last forty years. His many publications in the field of ancient political thought include the path-breaking The Stoic Idea of the City (Cambridge, 1991), and the authoritative The Cambridge History of Ancient Greek and Roman Political Thought (Cambridge, 2000), co-edited with Christopher Rowe.

Tom Griffith has published translations of many Platonic dialogues, noted for their combination of easy and natural modern English with faithfulness to the tone and content of the original Greek. His version of the Republic, coedited with G. R. F. Ferrari (Cambridge, 2000), has been one of the most widely read texts in the Cambridge Texts in the History of Political Thought series. Together with Malcolm Schofield he is also coeditor of another previous series volume, Plato: Gorgias, Menexenus, Protagoras (Cambridge, 2010).