Harry Binswanger, an associate of Ayn Rand in her final years, is a member of the board of directors of the Ayn Rand Institute. He has taught philosophy at Hunter College and the New School for Social Research in New York, and at the University of Texas in Austin. He created The Ayn Rand Lexicon, a mini encyclopedia of Objectivism compiled from Ayn Rand's key passages on 400 topics , and he is the editor of the expanded second edition of Ayn Rand's Introduction to Objectivist Epistemology.
Binswanger received his PhD in philosophy from Columbia University in 1973. During the 1980s, he edited and published The Objectivist Forum, a bimonthly journal for which Rand served as consultant until her death in 1982. He has lectured at some 40 universities and has appeared on numerous radio and television programs.