| name | mediatype | date | Author | Language | type | Narrative location | Title |
|---|---|---|---|---|---|---|---|
| The Ominous Parallels | 1982 | Leonard Peikoff | |||||
| The Early Ayn Rand | 1984 | Leonard Peikoff | |||||
| The Voice of Reason: Essays in Objectivist Thought | 1989 | Leonard Peikoff | |||||
| Introduction to Objectivist Epistemology | 1990 | Leonard Peikoff | |||||
| Objectivism: The Philosophy of Ayn Rand | 1991 | Leonard Peikoff |