2019. Al-Ghazali Chair of Islamic Thought Inaugural Lecture: Advancing Comparative Epistemology and Civilisational and Futures Studies. Kuala Lumpur: ISTAC-IIUM Publications.
2018. Al-Farabi: Life, Works and Significance, New Second Edition. Kuala Lumpur: Islamic Book Trust.
2016. Qur’anic Pictures of the Universe: The Scriptural Foundation of Islamic Cosmology. Kuala Lumpur: Islamic Book Trust & UBD Press.
2014. Islamic Civilisation and the Modern World: Thematic Essays. Brunei Darussalam: UBD Press.
2008. Tawhid and Science: Islamic Perspectives on Religion and Science, New Second Edition. Shah Alam, Malaysia: Arah Publications.
2007. Environmental Wisdom for the Planet Earth: The Islamic Heritage. Kuala Lumpur: University of Malaya Press.
2006. The Qur’an and Interfaith and Inter-civilization Dialogue: Interpreting a Divine Message for Twenty-first Century Humanity. Kuala Lumpur: International Institute of Islamic Thought (IIIT) & ISUGU.
1999. The History and Philosophy of Islamic Science. Cambridge: Islamic Texts Society.
1998. Classification of Knowledge in Islam. Cambridge: Islamic Texts Society.
1997. Islam and Civilizational Dialogue: Quest for a Truly Universal Civilization. Kuala Lumpur: University of Malaya Press.
1995. Islamic Art: A Malaysian Perspective. Authors: Osman Bakar & Ruzaika Omar Basaree. National Art Gallery: Kuala Lumpur.
1992. Bibliography of Islamic Manuscripts at Islamic Museum, Malaysia. Authors: Osman Bakar & Engku Ibrahim Engku Ismail. Islamic Affairs Division, Prime Minister’s Department & University of Malaya Press.
1991. Tawhid and Science: Essays in History and Philosophy of Islamic Science. Kuala Lumpur: Nurin Press; Penang: Secretariat of Islamic Philosophy, Science University of Malaysia.
1987. Al-Farabi: Life, Works, and Significance. Kuala Lumpur: The Islamic Academy of Science (ASASI).
a voyage into the realm of the intellect 