This book contains selected peer-reviewed full-text research papers from the 18th International Symposium on Advanced Materials (18th ISAM) held at the National Centre for Physics (NCP), Islamabad, Pakistan, on October 02-06, 2023. The editors hope that this compilation of the conference results will provide the reader with a broad overview of the latest advances in the field of advanced materials science and technologies, and will be a valuable reference source for further research.