Notable works[edit]
- Language and Magic: Studies in the Magical Function of Speech (1956)
- The Structure of the Ethical Terms in the Koran: A Study in Semantics (1959)
- God and Man in the Koran: Semantics of the Koranic Weltanschauung (1964)
- The Concept of Belief in Islamic Theology: A Semantic Analysis of Īmān and Islām (1965)
- Ethico-religious Concepts in the Qurʾān (1966; reprinted in 2002 with a new foreword by Charles J. Adams)
- A Comparative Study of the Key Philosophical Concepts in Sufism and Taoism (2 vols., 1966–1967)
- The Concept and Reality of Existence (1971)
- Toward a Philosophy of Zen Buddhism (1977)
- The Theory of Beauty in the Classical Aesthetics of Japan (with Toyoko Izutsu, 1981)
- Sufism and Taoism: A Comparative Study of Key Philosophical Concepts (1983)
- Creation and the Timeless Order of Things: Essays in Islamic Mystical Philosophy (1994)
- The Structure of Oriental Philosophy: Collected Papers of the Eranos Conference: Volume I (2008)
- The Structure of Oriental Philosophy: Collected Papers of the Eranos Conference: Volume II (2008)
