Khairudin Aljunied makes a significant contribution to the study of the Islamic thought of the Muslim author and thinker from South East Asia, Haji Abdul Malik Karim Amrullah (1908–1981), better known by the acronym Hamka. His book provides a systematic and thorough study of Hamka's thoughts and designates him an Islamic 'cosmopolitan reformer'. This is a book that scholars in Islamic studies and social and human sciences have been awaiting. It provides a breath of fresh air and is a must-read book on the subject. It should be read by students in general and Muslims around the world, both in the Islamic world and where they live as minority populations- Ayang Utriza Yakin, Ghent University (South East Asia Research)