This book, 'Kitab al-Naqa'id' by Abi Ubaidah Ma'mar ibn al-Muthanna, is a foundational work in classical Arabic literary criticism. It meticulously compiles and analyzes the famed poetic 'naqa'id' (contests or refutations) between two of the greatest Arab poets of the Umayyad era, Jarir and Al-Farazdaq. These poetic duels were not merely exchanges of insults but complex literary performances showcasing rhetorical skill, linguistic prowess, and deep understanding of Arab tribal pride and societal values. Abi Ubaidah's work preserves these invaluable poetic exchanges, offering scholars and enthusiasts alike a unique window into the literary landscape and critical methodologies of early Islamic intellectual history. It remains an essential resource for studying the golden age of Arabic poetry and its sophisticated critical reception.