The authors of this book are a lovely couple who has been together since 2010. They meet each other in Shanghai, China. Both of them love studying languages. DOMOND CLAUDE VERNA speaks Kreole, English, French, Spanish, Chinese, and now is learning Japanese, Russian, and Arabic. WANG LU speaks Chinese, English, French, and now is learning Spanish, Korean and Arabic. DOMOND CLAUDE VERNA is a mandarin Chinese amateur, who graduated from bachelor's degree in graphic design in Haiti, and furthered his study in Mandarin Chinese in University of Nevada Las Vegas (UNLV), and East China University of Science and Technology. He has lived in Shanghai, China for many years. WANG LU is a mandarin Chinese native speaker, who graduated from master's degree in International Business and Diplomacy in University of East Anglia (London Campus), England.

She has a multi-cultural background and lived in England for many years.