Book excerpt: This book is the proceedings of the 4th International Colloquium on Interdisciplinary Islamic Studies (ICIIS), which was held in conjunction with the 1st International Conference on Education, Science, Technology, Indonesian, and Islamic Studies (ICESTIIS) in Jambi, Indonesia, on 20-21 October 2021, using blended platforms, in person and online. The Graduate School of UIN Syarif Hidayatullah Jakarta and UIN Sulthan Thaha Saifuddin, Jambi jointly organized the conference. This conference brought together academic researchers, business professionals, and graduate students to share their experiences and research findings on a wide variety of topics related to interdisciplinary Islamic studies. The proceedings are comprised of 52 high-quality papers chosen from more than 250 submissions. Islam and medicine, Islamic education, Islamic studies, psychology, the Qur'an and Hadith, and science and technology are the six issues covered in the papers. This publication is made possible by the committed steering and organizing committees who oversaw and organized the conference, as well as the reviewers for their academic contributions and commitment to assessing papers.