• P. Boehner and M.F. Laughlin (eds), Works of Saint Bonaventure, 15 vols (Saint Bonaventure NY: 1955-2010).

• J.G. Bougerol, Introduction to the Works of Bonaventure (New York: 1964).

• C.M. Cullen, Bonaventure (Oxford: 2006).

• E. Gilson, The Christian Philosophy of St. Bonaventure, trans. D.I. Trethowan and F.J. Sheed (London: 1940).

• J.M. Hammond, J.A. Wayne Hellmann, and J. Goff (eds), A Companion to Bonaventure (Leiden: 2014).

• A. Speer, “Bonaventure and the Question of a Medieval Philosophy,” Medieval Philosophy and Theology 6 (1997), 25-46.

• A. Speer, “Illumination and Certitude: The Foundation of Knowledge in Bonaventure,” American Catholic Philosophical Quarterly 85 (2011), 127-41.

Stanford Encyclopedia: Bonaventure