The father of debate: Protagoras of AbderaSmith, Bromley · Quarterly Journal of Speech · 1918

The Humanism1 of the Sophists With Emphasis on Protagoras of AbderaGEORGE C. SIMMONS · 1969

ESSAYS ON PROTAGORAS - J.M. Van Ophuijsen, M. Van Raalte, P. Stork (edd.) Protagoras of Abdera: the Man, His Measure. (Philosophia Antiqua 134.) Pp. 332. Leiden and Boston: Brill, 2013. Cased, €125, US$162. ISBN: 978-90-04-25120-5.Lavery, Jonathan · The Classical Review · 2015

Book review: Protagoras of Abdera: The Man, His Measure, written by Johannes M. van Ophuijsen, Marlein van Raalte, and Peter StorkMoore, Christopher · Polis: The Journal for Ancient Greek Political Thought · 2014

Protagoras of Abdera: The Man, His Measure. Edited by Johannes M.vanOphuijsen, MarleinvanRaalte, and PeterStork. Pp. xi, 332, Leiden, Brill (Philosophia Antiqua vol. 134), 2013, € 125/$162.Waterfield, Robin · The Heythrop Journal · 2014