Recently, Prof. WANG Guangxu, from the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (NIGPAS), published his English monograph Systematics and Evolution of Cyathophylloidid and Stauriid Rugose Corals (Late Ordovician–mid-Silurian) in Fossils and Strata. The volume, 195 pages in length and illustrated with 102 figures, provides a comprehensive synthesis of the taxonomy and evolutionary history of two major rugose coral families during the Late Ordovician to mid-Silurian interval. This work resolves long-standing taxonomic uncertainties and offers new insights into the evolution of Early Palaeozoic marine ecosystems.