“We are grateful to Gunnoe because his rigorous and in-depth study is destined to become a classic (and, I predict, a model) and will remain a steadfast point of reference for many central questions about European culture of the early modern age.”
Michaela Valente, Università La Sapienza, Rome. In: Sixteenth Century Journal, Vol. 44, No. 2 (2013), pp. 485-487.

“This biography makes a strong case for the importance of Erastus' contribution to a range of intellectual spheres; more than that, it significantly enhances our understanding of many of the tensions which shaped the Reformation in Heidelberg. For both these reasons, Gunnoe is greatly to be commended.”
Kenneth Austin, University of Bristol. In: The Journal of Ecclesiastical History, Vol. 63, No. 1 (January 2012), pp. 163-164.

“Charles Gunnoe's welcome biography illuminates a contentious intellectual whose sizable imprint upon sixteenth- and seventeenth-century learned culture has not received commensurate attention in recent scholarship.”
Mitchell Lewis Hammond, University of Victoria. In: Church History, Vol. 81, No. 3 (September 2012), pp. 694-695.

“Gunnoe’s work is characterized by meticulous interaction with the relevant primary sources, made possible by his work in the archives in Heidelberg and other relevant collections on the Continent. Particularly noteworthy is Gunnoe’s reliance on Erastus’ largely unpublished correspondence, which testifies to Erastus’ significance for the early modern intellectual news network of Reformers and Renaissance humanists […]. This book must be a primary point of reference for any serious explorations into the various areas of intellectual history that Erastus influenced in the course of his significant career.”
Jordan J. Ballor, Acton Institute, Grand Rapids. In: Journal of Markets & Morality, Vol. 15, No. 2 (2012), pp. 492-494.