Binswanger was a friend of Ayn Rand in the final years of her life and has written his subsequent philosophical work in the tradition of Rand's Objectivist philosophy. From 1980 through 1987, he published and edited a bimonthly journal called "The Objectivist Forum", which was later published as a hardback collection. He edited the new material in the second edition of Rand's book, "Introduction to Objectivist Epistemology", published in 1990 after her death. He also compiled "The Ayn Rand Lexicon", a compilation of Rand's views on various topics. His book, "How We Know: Epistemology on an Objectivist Foundation", was published in 2014.