This specialized academic work by Dr. Kazem Ajil Al-Jubouri delves into the complex phonetic issues surrounding the hamza (glottal stop) in the Arabic language. The author meticulously examines and analyzes the justifications and explanations provided in various functional phonetics textbooks, offering a comprehensive critical review of how these sources tackle the varied pronunciations and orthographic representations of this foundational consonant. This book is an essential resource for linguists, phoneticians, and advanced students of Arabic linguistics seeking a deeper understanding of phonetic analysis and its application to specific, challenging phonological problems within the language.