Mario Herrera
Mario Herrera has a Degree in Education and an MA in EFL. From young children to adults, Mario has taught English for more than 30 years at all levels. Author and co-author of many acclaimed ESL/EFL series that are used in levels ranging from pre-primary to junior high schools, he is also an international consultant and teacher trainer. Mario travels the globe, directing seminars and delivering professional development workshops throughout the Americas, Europe, the Middle East, and Asia.
