This book, 'Arabic Phonology: Optimality in Composition and Variation' by Dr. Abdul Razzaq Tourabi, offers an in-depth study of Arabic phonology from the perspective of Optimality Theory, a modern linguistic framework. The author explores how phonetic structures are composed in Arabic and the variations that appear within them, analyzing the rules and constraints that govern the sound system. The book presents a new vision for understanding phonetic and dialectal diversity in the Arab world, serving as an important reference for researchers and students specializing in Arabic linguistics and phonetics, linking theoretical analysis with practical examples from the language.