This is the first volume in a monumental four-part critical edition of the Diwan of Abu Nuwas, meticulously compiled and edited by the renowned scholar Gregor Schoeler. Abu Nuwas, one of the greatest classical Arabic poets, is celebrated for his vibrant and often controversial verse, which profoundly influenced Arabic literature. This scholarly work presents his collected poems with unprecedented academic rigor, offering invaluable insights for both academics and poetry enthusiasts into the life and work of this iconic figure. It provides a comprehensive and authoritative text essential for the study of classical Arabic poetry.