Jonathan Chang graduated from the Beijing University of Chinese Medicine in 2012. From 2008 to 2017 he studied with Wang Ju-yi in Beijing, where he was also Dr. Wang’s full-time assistant. In August 2012, he was recognized by the Beijing Administration of TCM, Beijing Acupuncture and Moxibustion Association and Wang Ju-yi, as an apprentice and official instructor of Applied Channel Theory. In 2015, he was recognized as one of Wang Ju-yi’s indoor apprentices. He was one of the main contributors to Dr. Wang’s books "Wang Ju-yi’s Applied Channel Theory Clinical Case Studies" (China Press of TCM 2014）and ”An Introduction to Applied Channel Theory” (China Press of TCM 2016). Jonathan currently works at the Wang Ju-yi Applied Channel Theory Research Center and Ling Lan TCM Clinic in Beijing. He also teaches Applied Channel Theory in China and internationally.