This pivotal 2019 work by Professor Dr. Ghanim Qaddouri Al-Hamad, a leading authority on Quranic sciences, delves into the intricate science of Quranic orthography (rasm al-muṣḥaf). The book meticulously examines the spelling conventions and unique graphic features of the Othmanic codex. It serves as an essential academic resource for students and researchers of Islamic studies and Quranic script. This edition, presented in a convenient 17x24 cm format, provides a comprehensive analysis of the historical development and rules governing the written text of the Holy Qur'an, making complex concepts accessible to a scholarly audience.