• J.A. Aertsen, Medieval Philosophy and the Transcendentals: the Case of Thomas Aquinas (Leiden: 1996).

• J.A. Aertsen, “Beauty in the Middle Ages: A Forgotten Transcendental?” Medieval Philosophy and Theology 1 (1991), 68-97.

• J.A. Aertsen, Medieval Philosophy as Transcendental Thought: from Philip the Chancellor (ca.1225) to Franciscio Suárez (Leiden: 2012).

• M. Carruthers, The Experience of Beauty in the Middle Ages (Oxford: 2013).

• U. Eco, Art and Beauty in the Middle Ages, trans. H. Bredin (New Haven: 1986).

• J.J.E. Gracia, “The Transcendentals in the Middle Ages: an Introduction,” Topoi 11 (1992), 113-20.

• S. MacDonald (ed.), Being and Goodness: the Concept of the Good in Metaphysics and Philosophical Theology (Ithaca: 1991).

• S. MacDonald, “Goodness as a Transcendental: the Early Thirteenth-Century Recovery of an Aristotelian Idea,” Topoi 11 (1992), 173-86.

Stanford Encyclopedia: Transcendentals in Medieval Philosophy