Professor Fang Xujun is a doctoral tutor in the International College of Chinese Studies, Shanghai Normal University, and a member of The International Society for Chinese Language Teaching. Prof. Fang’s works include the book Modern Chinese Notional Words, quite a few textbooks as well as many papers published in Chinese Teaching in the World, Linguistic Sciences, Language Teaching and Linguistic Studies and other journals. Mr. Fang has hosted or participated in projects such as “A Cognitive Study on Foreigners’ Acquisition of Similar Chinese Words” (financed by the National Social Science Fund), “The Development of a National Common Framework of Language Proficiency Scales” (financed by the National Social Science Fund) and “A Study on the Chinese Proficiency Scales” (a project under Shanghai Ministry of Education).