In 1969, Dr. Wu wrote a book entitled Man Lung Artistic Pot Plants and gave copies of the book freely to leading libraries, universities, Penjing clubs and societies, as well as to lovers of the art throughout the world. Because of his great contribution towards the art of Penjing, Dr. Wu is acclaimed internationally as 'Pen Sheng' (the Sage in the art of Penjing) and in 1998, the Purple Mountain Observatory of Academia Sinica in China named a minor planet (number: 3570) in honour of him. < Back