Erika Osváth is a teacher, teacher trainer and materials writer. She is the co-author of Mixed Ability Teaching, OUP (2016). Prior to embarking on a career in teacher training and development in 2009, she worked for International House for 16 years in Central and Eastern Europe as Director of Studies, where she also co-ordinated courses for Young and Very Young Learners, as well as for students of Business English. She has acted as a trainer on many Cambridge Certificate in English Language Teaching to Adults (CELTA) courses. Erika has extensive experience in teaching primary, secondary and adult learners.