Dr. Binswanger, a member of ARI's board of directors, is the author of How We Know and The Biological Basis of Teleological Concepts, the editor of The Ayn Rand Lexicon and co-editor of the second edition of Ayn Rand's Introduction to Objectivist Epistemology. He is an instructor of philosophy at the Ayn Rand Institute's Objectivist Academic Center. Dr. Binswanger also moderates and regularly posts to an email discussion group, "The Harry Binswanger Letter" (HBL).