Rod Chang's interest in astrology began in his teens, with formal training continuing at the Faculty of Astrological Studies in London and the London School of Astrology. He was the in-house astrologer on three seasons of a popular daytime television programme in Taiwan. Since 2015 he has spoken at international astrology conferences in Poland, the United Kingdom, and Australia, including the 19th FAA International Astrology Conference in 2016. He is co-founder of the Academy of Astrology (AOA), which opened in Taiwan and Hong Kong before expanding into China and Japan, and founder of the Academy of Astrology UK (AOA UK), bringing the curriculum to English-speaking students. He is a volunteer trustee and board member of the Astrological Association of Great Britain.