The Book of Strangers, (State Univ of New York Press, 1972, ISBN 978-0-88706-990-1) The Way of Muhammad,[20] an existential exposition of the pillars of Islam from the perspective of Sufism (Diwan Press, 1975, OCLC 16373203) Indications From Signs, (Diwan Press, June 1980, ISBN 978-0-906512-12-8) The Hundred Steps, a classic work on key steps in the path of Sufism (Portobello Press, ISBN 978-1-874216-04-9) Qur'anic Tawhid, (Diwan Press, 1981, ISBN 978-0-906512-14-2) Letter to An African Muslim, (Diwan Press, 1981, ISBN 0-906512-13-1) Kufr – An Islamic Critique, (Diwan Press, 1982, ASIN: B0007C6U32) Root Islamic Education,[21] written on the school of the people of Madinah under the leadership of Imam Malik (Madinah Press, June 1993, ISBN 978-1-874216-05-6) Oedipus and Dionysus (Freiburg Verlag, 1992, ISBN 1-874216-02-9) The Sign of the Sword, an examination on the judgements on jihād in the light of classical works of fiqh, particularly al-Qawanin al-fiqhiyyah of Ibn Juzayy al-Kalbi, relating it to the contemporary situation and the global dominance of world banking and usury finance. (Diwan Press, 1984, ISBN 978-1-871207-26-2) The Return of the Khalifate, a historical work on the Ottomans, their demise and its causes and an exposition of a route to the recovery of the khalifate (Madinah Press, 1996, ISBN 978-1-874216-21-6) The Technique of the Coup de Banque[22] on the modern age since its inception in the French Revolution.