Kamaluddin Nurdin Marjuni is a Profesor Madya and Head of Postgraduate Programmes, Faculty of Usuluddin, Universiti Islam Sultan Sharif Ali (UNISSA), Brunei Darussalam. He was a Profesor Madya at Faculty of Leadership and Management, Universiti Sains Islam Malaysia (USIM), 2007-2023; a Visiting Professor at Académie Européenne des Cultures Et Des Savoirs Islamiquesues (AECSI), Paris - France, 2021; and at Universiti Kebangsaan Malaysia (UKM), 2016. He was born on 11 june, 1973 in Soppeng, Sulawesi Selatan, Indonesia, he received his Ph.D in Akidah and Islamic Philosophy from the University of Cairo. Kamal is the author of Al-ʻAqīdah al-Islāmīyah wa-Al-Qadāyā al-Khilāfīyah ʻinda ʻUlamāʼ al-Kalām, published by Dār al-Kutub al-ʻIlmīyah, Beirūt, Lebanon.

And he is a keynote speaker and invited speaker in many countries for international conferences, including Marmara University, Istanbul Turkiye, Çanakkale Onsekiz Mart University, Turkiye, International Islamic Academy of Uzbekistan, and some universities in Malaysia, Indonesia and Brunei Darussalam. He had become a supervisor for 3 Master and 15 Ph.D (Graduated), and External Examiner for 5 Master and 38 Ph.D. Currently has written 20 books in Arabic and Malay languages, and published in various countries such as Beirut-Lebanon, Cairo-Egypt, Abud Dhabi-UEA, Malaysia, Indonesia and Brunei Darussalam.

The books are collected by various universities in the world:

• Harvard University, USA
• Columbia University, USA
• Stanford University, USA
• University of California (UCLA), USA
• University of Texas, USA
• Duke University, USA
• University of Pennsylvania, USA
• University of IOWA, USA
• Emory University, USA
• New York University, USA
• The Ohio State University, USA
• University of Washington, USA
• Library of Congress, USA
• Princeton University, USA
• University of Chicago, USA
• University of Toronto, Canada
• The British Library, UK
• Institute of Ismaili Studies, Aga Khan Library, UK
• Giorgio La Pira library, Italy
• Gümüşhane University Library, Türkiye
• Akadeniz University Library, Türkiye
• Kyoto University, Japan
• National Institute of Informatics, Japan
• Salim Abdullah Al Humaid Public Islamic Univerisity, UAE
• The Emirates Centre for Strategic Studies and Research, UAE
• National Library of UAE, UAE
• Iran Library, Iran
• Noor Digital Library, Iran
• Cairo University, Egypt
• Egyptian Universities Libraries Consortium, Egypt
• Dominican Institute for Oriental Studies, Egypt
• Qatar National Library, Qatar
• Public Library of Bahāʾ ad-Dīn al-ʿĀmilī, Lebanon
• King Fahad National Library, Saudi Arabia