Ibn Rashiq al-Qayrawani's "Al-Umda fi Mahasin al-Shi'r wa Adabih wa Naqdih" (The Mainstay on the Virtues of Poetry, its Etiquette, and Criticism) is a monumental classical Arabic treatise. It stands as a cornerstone in Arabic literary criticism, offering profound insights into the art of poetry, the lives and works of poets, and the intricate principles governing poetic structure and aesthetics. The book meticulously explores various poetic forms, rhetorical devices, and critical methodologies, providing a comprehensive framework for appreciating and evaluating classical Arabic verse. It remains an essential reference for scholars and enthusiasts of Arabic literature.