Introduction to Objectivist Epistemology
 Introduction to Objectivist Epistemology is a non-fiction book by Ayn Rand and Leonard Peikoff first published in its combined form in 1979. The majority of the book is Rand's summation of the Objectivist theory of concepts and solution to the problem of universals. An additional essay by Peikoff discusses the analytic–synthetic distinction. A second edition published in 1990 includes transcripts of a discussion session Rand conducted on epistemology.