Philippe G. Ciarlet began his academic career at the Université Pierre et Marie Curie, Paris, in 1974 and then went to City University of Hong Kong from 2002 to 2022. He has been a Senior Fellow of the Hong Kong Institute for Advanced Study of City University of Hong Kong since 2015 and a Gastprofessor at the Institute for Mathematics of the University of Zürich since 2020. He is a member of nine academies, national and international, and is a SIAM Fellow and an AMS Fellow. He is the recipient of several prizes and awards, including the Poncelet Prize and a Grand Prize from the French Academy of Sciences and a Humboldt Research Award. He is Doctor Honoris Causa or Honorary Professor at thirteen universities. He is the author of more than 200 research papers and 16 books.