Mu-yu shu 木魚書, an important form of Cantonese popular literature , has been studied by many scholars, both in China and abroad. In 1995, three Japanese scholars published the Mokugyo sho Mokuroku 木魚書目錄, a catalogue of Mu-yu shu holdings around the world. While on a trip investigating Chinese book collections in England and Holland, the author discovered copies of 22 Mu-yii shu that are not listed in the Mokugyo sho Mokuroku, as well as an incomplete Ming edition of the most famous Mu-yii shu, Hua-chien chi 花箋記 (Account of the Flowery Paper, originally translated as Chinese Courtship), determining it to be the earliest extant Mu-yii shu edition. The present paper also discusses the original edition of another famous Mu-yii shu, Erh ho-hua shih 二荷花史, also previously undiscovered by other scholars. The collections of the University of London hold a number ofMu-yu shu editions that are earlier than those listed in the Mokugyo sho Mokuroku, and they are catalogued for the first time. The author hopes that these discoveries can supplement the Mokugyo sho Mokuroku, and provide a valuable reference for scholars of popular literature.