This book describes the mountain forests of East Asia (Korea, Japan, China and Taiwan), the tree layers of which contain different species of the genus Fagus. The vegetation is primarily deciduous in the northern regions, whereas in South China evergreen trees can also be found: a total of 21 plant communities are described, with data on species composition, dominance, geographical distribution and ecology. A general comparison is provided by synoptic Table 1, which details the frequencies of ca. 1500 species growing in the Fagus forests; biodiversity and evolution are discussed. The book, which is the fruit of a major international collaboration, presents a synthesis of extended original investigations by the authors and hardly accessible specialist literature.