Adel El Bahy's seminal work, 'Quantificational Semantics of Indefiniteness in Arabic,' delves into the intricate nuances of indefinite expressions within the Arabic language. Part of the esteemed Linguistic Knowledge Series, this book offers a profound analysis of how indefiniteness functions semantically and syntactically, particularly focusing on its quantificational aspects. El Bahy meticulously explores the various ways indefinite nouns and pronouns are used to convey meaning, examining their scope, reference, and the implications for linguistic theory. This comprehensive study provides invaluable insights for linguists, Arabists, and scholars interested in the complexities of Arabic grammar and semantics, shedding light on a fundamental yet often overlooked area of linguistic inquiry.