| The Kaliph Hakim and History as a Cyclical Happening | Knapp, B. L. | English | Bibliography |
| The Khodjas: The Disciples of the Old Man of The Mountain | Frere. | English | Bibliography |
| The Khojas of Bombay: the Defining of Formal Membership Criteria During the Nineteenth Century. | Masselos, J. C. | English | Bibliography |
| The Khojki Script | Khaki, Dr. Gulshan | | Full Text |
| The Later Gaznavids: Splendour and Decay | Bosworth, Clifford E. | English | Bibliography |
| The Letters of Al-Mustansirbillah | Hamdani, Husayn F. al-. | English | Bibliography |
| The Life and Times of the Queen Saiyidah Arwa - The Sulayhid of the Yeman | Hamdani, Husayn F. al-. | English | Bibliography |
| The Logic of Ta'wil in Ismaili Philosophy and Thought. | Makan, Nizar. | English | Bibliography |
| The Lord Will Marry The Virgin Earth: Songs Of The Time To Come | Khan, Dominique-Sila; Moir, Zawahir. | English | Bibliography |
| The Mahdi, a Brief History of the Rise of the Ismailian Sect. | Raverty, H. G. | English | Bibliography |
| The Meaning of Six Days in Which God Created the Heavens and Earth | Al-Shiraz, Al-Muayyad-Fid-din | English | Full Text |
| The Meaning of Six Days in Which God Created the Heavens and Earth | Al-Shirazi, Al-Muyyad-Fid-din | English | Full Text |
| The Memoirs of Aga Khan | Aga Khan III, Sir Sultan Mohamed | French | Bibliography |
| The Memoirs of Aga Khan | Aga Khan III, Sir Sultan Mohamed | German | Bibliography |
| The Memoirs of Aga Khan - English | Aga Khan III, Sir Sultan Mohamed | English | Full Text |
| The Memoirs of Aga Khan - Foreword | Tibawi, A.L. | | Full Text |
| The Mongol Hordes and their military tactics and battle styles | Stangler, Gordon. | English | Bibliography |
| The Mosque of Al-Hakim in Cairo | Bloom, J. M. | English | Bibliography |
| The Multiple Facets of Ismâ‘îlism | Steigerwald, Diana | English | Full Text |
| The Muslim Architecture of Egypt | Cresswell, K. A. C. | English | Bibliography |
| The Mystical Path of Islam | Steigerwald, Diana | English | Full Text |
| The Nature of the Fatimid Achievement | Grunebaum, Gustave E. von. | English | Bibliography |
| The Nizari Isma'ili Tradition in the Indo-Pakistan Subcontinent | Nanji, Azim. | English | Bibliography |
| The Nizari Isma'ilis of Pakistan: Isma'ilism, Islam and Westernism Viewed through the Firmans: 1936-1980. | Rattansi, D. | English | Bibliography |
| The Nizari Ismaili Community in East Africa. | Nanji, Azim. | English | Bibliography |
| The Nizari Ismaili Community in North America: Background and Development. | Nanji, Azim. | English | Bibliography |
| The Nizari Ismaili Imam and Plato's Philosopher-King | Hajjar, S.,; S. J. Brzezinski. | English | Full Text |
| The Nizari Ismaili Traditions in Hind and Sind | Nanji, Azim. | English | Bibliography |
| The Notion of Ta'wil in Abu Ya'qub al-Sijistani's `Book of the Sources (Kitab al-Yanabi)' | Heinen, A. H. | English | Bibliography |
| The Old Man of the Mountain | Novel, C. | English | Bibliography |
| The Old Man of the Mountains | Luke, H. C. | English | Bibliography |
| The Order of Assassins: The Psychology of Murder | Wilson, Colin. | English | Bibliography |
| The Order of the Assassins: The struggle of the early Nizari Ismailis against the Islamic world | Hodgson, Marshall G. S. | English | Bibliography |
| The Organization of the Fatimid Propaganda | Ivanow, Wladimir. | English | Bibliography |
| The Origin of the Bohras | Nadvi, Syed Abu Zafar. | English | Bibliography |
| The Origin of the Druze Religion | Breyer, David. | English | Bibliography |
| The Origin of the Khojahs and their Religious Life Today | Al-Qadi: See Qadi. | English | Bibliography |
| The Origin of the Khojas and their Religious Life Today. | Mujtaba Ali, Syed. | English | Bibliography |
| The Origins of Isma'ili Law. | Lokhandwalla, S. T. | English | Bibliography |
| The Origins of the Druze People and Religion, with Extracts from their Sacred Writings | Hitti, Philip. | English | Bibliography |
| The Pains of Modernisation: a Case Study of Bohras in Udaipur | Verdia, H. S. | English | Bibliography |
| The People of the Book | Steigerwald, Diana | English | Full Text |
| The Philosophical Significance of the Imam in Isma'ilism | Makarem, Sami N. | | Full Text |
| The Philosophical Significance of the Imam in Ismailism | Makarem, Sami Nasib. | English | Full Text |
| The Political Doctrine of the Ismailis: An edition and translation with introduction and notes of Abu'l Fawaris Ahmad ibn Ya'qub's `ar-Risala fi l-Imama' | Makarem, Sami Nasib. | English | Bibliography |
| The Political Role of Minority Groups in the Middle East | McLaurin, R. de, ed. | English | Bibliography |
| The Politics of Innovation and Integration: a Political Study of the Druze Community in Israel. | Ben-Dor, Gabriel. | English | Bibliography |
| The Preaching of Islam | Arnold, Thomas Walker, Sir. | English | Bibliography |
| The Priest in Ismailism | Calverley, E. E. | English | Bibliography |
| The Prince Aga Khan: an Authentic Life Story | Shah, Sirdar Ikbal Ali. | English | Bibliography |
| The Prohibition of Reinstating a Divorced Wife in the Druze Family | Lahish, Aharon. | English | Bibliography |
| The Psychology of Nasir-i-Khusrov | Mutazid, Wali-ur-Rahman. | English | Bibliography |
| The Pure Brethren and the Philosophical Structure of their System. | Widengren, Geo. | English | Bibliography |
| The Quarmatians | Bello, Iysa Ade. | English | Bibliography |
| The Racial Origins of the Druzes. | Izzeddin, Nejla M. | English | Bibliography |
| The Rasail Ikhwan al-Safa in the Ismaili Literature | Hamdani, Husayn F. al-. | English | Bibliography |
| The Reign of Hakim Bi amr Allah | Sadik, A. A. | English | Bibliography |
| The Reign of the Fatimid Caliph al-Mustansir bi'Allah: a Discussion of the al-Onaprigi Account Given in the `Itti'az al-Hunafa'. | Kessler, P. E. | English | Bibliography |
| The Relation between Sufism and Philosophy in Persian Culture | Nasr, Seyyed Hossein. | English | Bibliography |
| The Relation Between the Druze Faith and OtherReligions | Abi-Khzam, Sheikh Anwar F. Ph.D.Prof | English | Full Text |
| The Relation of the Buwayhids with the Fatimids. | Kabir, M. | English | Bibliography |
| The Religion of the Ismailis. | Fyzee, Asaf A. A. | English | Bibliography |
| The Religions of Modern Syria and Palestine | Bliss, F. J. | English | Bibliography |
| The Revolt of Aga Khan Mahallati and the Transference of the Ismaili Imamate to India | Algar, Hamid. | English | Bibliography |
| The Revolt of the Agha Khan Mahalatti and the Establishment of the Nizari Imamat in India. | Eboo, Nadia. | English | Bibliography |
| THE RISE AND DECLINE OF THE FATIMID EMPIRE. | Virani, Hanif. | English | Full Text |
| The Rise of Extremist Sects and the Dissolution of the Fatimid Empire in Egypt | Van Ess | English | Bibliography |
| The Sect of Imam Shah in Gujerat | Ivanow, Wladimir. | English | Bibliography |
| The Sect of the Assassins | Oshorn. | English | Bibliography |
| The Shi'ite Religion | Donaldson, D. | English | Bibliography |
| The Shia Imami Ismaili Community in Britain. | Hallam, R. N. M. | English | Bibliography |
| The Shia of India | Hollister, J. N. | English | Bibliography |
| The Shia School of Islam and its Branches, Especially That of the Imamee Ismailies | Howard, E. I. | English | Bibliography |
| The Shiah Doctrine of Imamate | Donaldson, D. | English | Bibliography |
| The Soteriological Cosmology of Central Asiatic Isma'ilism | Filippani-Ronconi, Pio. | English | Bibliography |
| The Sources for the History of the Syrian Assassins | Lewis, Bernard. | English | Bibliography |
| The Sources of Isma'ili Laws | Madelung, Wilferd. | English | Bibliography |
| The Spread of the Sathpanth Ismaili Da'wa in India. | Nanji, Azim. | English | Bibliography |
| The Study of the Literature of the Fatimid Da'wa. | Fyzee, Asaf A. A. | English | Bibliography |
| The Succession of the Fatimid Imam al-Amir, the Claims of the Later Fatimids to the Imamate and the Rise of Tayyibi Ismailism, | Stern, S. M. | English | Bibliography |
| The Syncretic Origin of the Fatimid Da'wa | Van Ess | English | Bibliography |
| The Syrian Ismailis and the Doctrine of Metempsychosis | Mirzah, Nasseh A. | English | Bibliography |
| The Syrian Ismailis at the Time of the Crusades. | Mirzah, Nasseh A. | English | Bibliography |
| The System of Islamic Philosophy | Horten, Max. | English | Bibliography |
| The Tale of Three Schoolfellows | Bowen, H. | English | Bibliography |
| The Task of Curriculum Planning for a Modern Ismaili Religious Education Curriculum | Virani, Hanif. | English | Bibliography |
| The Tayyibi - Fatimid Community of the Yaman at the Time of the Ayyübid Conquest of Southern Arabia | Hamdani, Abbas. | English | Full Text |
| The Theology of Imamat in the Work of Nasir al-Din Tusi | Howard, K. A. | English | Bibliography |
| The Troubadours and the Assassins | Chambers, F. M. | English | Bibliography |
| The True Meaning of Religion | Ivanow, Wladimir. | English | Bibliography |
| The Truth Worshippers of Kurdistan | Ivanow, Wladimir. | English | Bibliography |
| The Universal Soul and the Particular Soul in Ismaili Neoplatonism. | Walker, Paul. | English | Bibliography |
| The Valley of the Assassins | Willey, Peter. | English | Bibliography |
| The Valleys of the Assassins | Stark, Freya. | English | Bibliography |
| The Vedas as Sources of Satpanthi Ismaili Ginan Literature | Khakee, Dr. Gulshan | | Full Text |
| THE WRITINGS AND TRAVELS OF NASIR-I KHUSRAW THROUGH THE HOLY LAND | Marquez, Regie. | English | Full Text |
| THE WRITINGS AND TRAVELS OF NASIR-I KHUSRAW THROUGH THE HOLY LAND" A TERM PAPER SUBMITTED TO DR. BEA SPADE FOR HIST. 493 | Marquez, Regie. | English | Full Text |
| The Yamani Ismaili Dai Hatim b. Ibrahim al Hamidi (d. 596 A.H./1199 A.D.) and his Book `Tuhfat al Qulub', | Hamdani, Abbas. | English | Bibliography |
| The `adab al-Qadi' | Fyzee, Asaf A. A. | English | Bibliography |
| The `Controversies' of Fakhr al-Din Razi | Kraus, Paul . | English | Bibliography |
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