Wybrana twórczość Mohammad Iqbal, Poet and Philosopher: A Collection of Translations, Essays, and Other Articles (1960) Islamic Calligraphy (1970) Islamic Literatures of India (1973) Mystical Dimensions of Islam (1975) Classical Urdu Literature: From the Beginning to Iqbal (1975) Pain and Grace: A Study of Two Mystical Writers of Eighteenth-Century Muslim India (1976) A Dance of Sparks: Imagery of Fire in Ghalib’s Poetry (1979) We Believe in One God: The Experience of God in Christianity and Islam (1979) The Triumphal Sun: A Study of the Works of Jalaloddinn Rumi (1980) As Through a Veil: Mystical Poetry in Islam (1982) Das Mysterium der Zahl (1983) And Muhammad Is His Messenger: The Veneration of the Prophet in Islamic Piety (1985) Gabriel’s Wing: Study into the Religious Ideas of Sir Muhammad Iqbal (1989) Calligraphy and Islamic Culture (1990) Islamic Names: An Introduction (1990) A Two-Colored Brocade: The Imagery of Persian Poetry (1992) Islam: An Introduction (1992) Nightingales under the Snow: Poems (1994) Anvari’s Divan: A Pocket Book for Akbar (1994) Deciphering the Signs of God: A Phenomenological Approach to Islam (1994) Meine Seele ist eine Frau (1995) Look!