Caroline Phung started out as a full-time Vietnamese teacher after quitting her job as an external auditor. While trying to find new, effective ways of learning Vietnamese for her students, she started writing her own teaching materials. This led her to publish her first book of the series "Vietnamese Grammar and Sentence Patterns", which she believed would greatly help many self-study learners to build a strong foundation in the Vietnamese language. She also provides free Vietnamese learning materials and online courses on her website at howtovietnamese.com