The Cambridge CELTA (Certificate in English Language Teaching to Adults) is the most widely-recognised entry-level qualification for teaching English as a second/foreign language worldwide. It is suitable for people without any teaching experience, as well as those already in the profession who have no formal or practical qualification. It is very hands-on with lots of teaching practice. While it is certainly hard work, trainees often say that it is one of the most rewarding, memorable experiences of their lives!
An overview of the CELTA at IH Reggio Calabria: