Editor's note

Yoshiyuki （Yoshi） Tatsumi is currently the Program Director of the Institute for Research on Earth Evolution of Japan Agency for Marine-Earth Science and Technology （IFREE/JAMSTEC）. He received a BSc in Geology with honors （1978） and an MS （1980） from Kyoto University, and a PhD in Earth Sciences from the University of Tokyo in 1983. He held research/visiting positions at the University of Manchester, UK （1983--1984） and the University of Tasmania, Australia （1989--1990） while holding Assistant and Associate Professorships at Kyoto University （1983--1996）. He has been full Professor of School of Earth Sciences, Institute of Geothermal Sciences at the Kyoto University, and Ocean Research Institute at the University of Tokyo since 1996. Yoshi is a world-renowned igneous petrologist and authority on magma generation and evolution associated with subduction zones. He uses magmatism as a tool to understand the evolution of the solid Earth. He has published over 120 research papers in leading journals such as Nature, Science, Geology, Earth and Planetary Science Letters, Journal of Geophysical Research, Journal of Petrology, Contributions to Petrology and Mineralogy, Chemical Geology, etc. Every igneous petrologist today, in particular those who study the petro- genesis of subduction-zone igneous rocks, is impressed with and influenced by Yoshi＇s classic book 《Subduction Zone Magmatism》 （Tatsumi Y. and Eggins S., Blackwell Publishing, 1995, 1--224）, which has been widely cited in research papers and used in classrooms. His thinkina goes bevond magmatism.

Editor’s note

Yoshiyuki (Yoshi) Tatsumi is currently the Program Director of the Institute for Research on Earth Evolution of Japan Agency for Marine-Earth Science and Technology (IFREE/JAMSTEC). ......