text: Benjamin G Kohl; Ronald G Witt; Elizabeth B Welles, The Earthly republic : Italian humanists on government and society (Un. of Pennsylvania Press, 1978)
  Ronald G. Witt, "The Humanist Movement", in Thomas A. Brady, Jr., Heiko A. Oberman, & James D. Tracy, eds. Handbook of European History 1400-1600: Late Middle Ages, Renaissance & Reformation (E.J. Brill, 1995), pp. 93–125.
  Ronald G. Witt, In the Footsteps of the Ancients: The Origins of Humanism from Lovato to Bruni, Studies in Medieval and Reformation Thought, (ed. Heiko A. Oberman, E.J. Brill, 2000)
  Ronald G. Witt, Italian Humanism and Medieval Rhetoric, (Ashgate Variorum, 2002)
  Harald Braun, "In Defense of Humanist Aesthetics: Ronald G. Witt's Study of Early Italian Humanism", (H-Net Reviews, March 2003)
  Ronald G. Witt, The Two Latin Cultures and the Foundation of Renaissance Humanism in Medieval Italy (Cambridge Un. Press, March 2012)
  John Winter Jones, trans.,Travelers in Disguise: Narratives of Eastern Travel by Poggio Bracciolini and Ludovico de Varthema, (Harvard Un. Press, 1963), intr. by Lincoln Davis Hammond.
  John W. Oppel, The moral basis of Renaissance politics : a study of the humanistic political and social philosophy of Poggio Bracciolini, 1380-1459 (Ph.D. thesis, Princeton Un., 1972)
  Nancy S. Struever, The Language of history in the Renaissance : rhetoric and historical consciousness in Florentine Humanism (Princeton Un. Press, 1970)