Al-Nahw al-Wafi by Abbas Hassan is a monumental, four-volume encyclopedia of Arabic grammar, widely regarded as one of the most significant modern contributions to the field. This comprehensive work is distinguished by its systematic organization, clear explanations, and a modern pedagogical approach. Hassan meticulously discusses grammatical rules, presenting various scholarly opinions and providing extensive examples from the Quran, Hadith, and classical Arabic poetry. It serves as an indispensable reference for advanced students, academics, and researchers, bridging the gap between classical heritage and contemporary linguistic studies, offering a complete and sufficient (Wafi) treatment of Arabic syntax.