| Author | Title | Date |
| Taimni, I.K. | Science of Yoga; Yoga Sutras of Patanjali | 1961 |
| Taimni, I.K. | Way to Self-Discovery | 1970 |
| Talbot, Michael | Holographic Universe | 1992 |
| Teilhard de Chardin, Pierre | Divine Milieu | 1960 |
| Teilhard de Chardin, Pierre | Future of Man | 1964 |
| Teilhard de Chardin, Pierre | Letters from a Traveler | 1962 |
| Teilhard de Chardin, Pierre | Phenomenon of Man | 1959 |
| Theosophical Research Centre | Mystery of Healing | 1958 |
| Theosophy, Southern Centre | Devas and Men; compilation of theosophical studies | 1977 |
| Thich Nhat Hanh | Living Buddha, Living Christ | 1995 |
| Thierens, A.E. | Elements of Esoteric Astrology | 1931 |
| Three Initiates | Kybalion: study of hermetic philosophy of ancient Egypt | 1908 |
| Tillich, Paul | My Search for Absolutes | 1967 |
| Tinbergen, Jan (ed.) | RIO: Reshaping the International Order | 1976 |
| Tomlin, E.W.F. | Western Philosophers | 1963 |
| Tompkins, P. & Bird, C. | Secret Life of Plants | 1973 |
| Toynbee, Arnold J. | Study of History | 1947 |
| Trout, Susan S. | To See Differently: Personal Growth and Being of Service | 1990 |
| Trungpa, Chogyam | Meditation in Action | 1969 |
| Tucci, Giuseppe | Theory and Practice of the Mandala | 1970 |
| Van der Leeuw, J.J. | Fire of Creation | 1975 |
| Vance, Arthur | Last Chance for Peace | 1985 |
| Verney, Stephen | Into the New Age | 1976 |
| Vincent, Robert | Geometry of the Golden Section | 2003 |
| Vivekananda, Swami | Inspired Talks, My Master and other writings | 1934 |
| Vivekananda, Swami | Jnana Yoga | 1939 |
| Vivekananda, Swami | Karma Yoga; Bhakti Yoga | 1933 |
| Vivekananda, Swami | Practical Vedanta | 1946 |
| Vivekananda, Swami | Raja Yoga | 1930 |
