Language Link The Certificate in English Language Teaching to Adults is an introductory course for candidates with little or no previous experience in teaching English to speakers of other languages. Accredited by University of Cambridge ESOL Examinations, it is the most internationally recognised and respected English Language Teaching qualification Language Link Vietnam was the first accredited CELTA training centre in Hanoi, offering custom-built facilities and top-quality trainers. As a member of the Language Link International group of schools, Language Link Vietnam draws upon over 20 years of CELTA training experience, and an extensive network to support all its activities. Language Link Vietnam is Hanoi’s premium English language school. We are well known in the community for a highly professional approach to our training programs, a relaxed but academically sound learning environment, the highest standards of service, and our management team of experienced educators.