He is known for his work on historic Thai art and architecture, especially of the Ayutthaya period.
He graduated in painting from Silpakorn University, before obtaining a master's degree in archaeology, also from Silpakorn, and completing a PhD in art history and archaeology from the University of Paris.
He is a professor emeritus at Silpakorn University's Faculty of Archaeology, where he taught from 1973 until retirement in 1990, and headed the Art History Department as well as the university's Graduate School.
[1] He has written about 20 textbooks and over 100 academic articles, and received a National Research Council award in 2000 for his work on the stupas of Wat Ratchaburana.
He is a fellow of the Royal Society, and has served advisory roles to the Fine Arts Department and International Council on Monuments and Sites.