[5] Guyer joined the University of Pennsylvania in 1983 as a tenured faculty member, where he subsequently rose to the rank of Professor of Philosophy and F.R.C.
He has also been a Research Prize Winner of the Alexander von Humboldt Foundation of the Federal Republic of Germany and a Daimler Fellow at the American Academy in Berlin.
In addition to his work on Kant, Guyer has published on many other figures in the history of philosophy, including Locke, Hume, Hegel, Schopenhauer, and others.
Recent works by Guyer include Knowledge, Reason, and Taste: Kant's Response to Hume (Princeton University Press), and The Cambridge Companion to Kant's Critique of Pure Reason (Cambridge University Press).
His three-volume work A History of Modern Aesthetics was published by Cambridge University Press in February 2014.