Antonia Clare is a teacher, teacher trainer and materials writer. She has taught and trained with International House and the British Council in many countries around the world including Italy, Spain, Hong Kong, Portugal, Ukraine, Poland, South Africa and the UK. She is a co-author of Language to Go Upper-Intermediate and Total English Intermediate and Advanced (Pearson Longman).

JJ Wilson is a teacher, teacher trainer and co-author of Language to Go Upper Intermediate and Total English Intermediate and Advanced (Pearson Longman). He has lived and worked in Egypt, Lesotho, Colombia, the UK, Italy and the US. He is currently a faculty member at the School of Education, Western New Mexico University, US. He is also the author of How to Teach Listening (Pearson Longman) which won an English Speaking Union award for the Best Book for Teachers.