Reinhold's Letters on the Kantian Philosophy is arguably the most influential book ever written concerning Kant.
Karl Ameriks is the McMahon-Hank Professor of Philosophy at the University of Notre Dame. He is co-editor with Desmond Clark of the Cambridge Texts in the History of Philosophy series. James C. Hebbeler is a graduate student in the Department of Philosophy, University of Notre Dame. His areas of interest include Kant, Post-Kantian German Philosophy, Modern Philosophy, Phenomenology.