Sarah Cunningham has been working in ELT for 16 years, as a teacher, teacher trainer and Director of Studies. She has worked in Greece, Spain, Hungary, Argentina and the UK, and for the last ten years she has been involved in writing ELT materials. As well as Cutting Edge (Longman), she is the co-author of five titles in the Making Headway series, three of which she co-wrote with Peter Moor.

Peter Moor has been involved in ELT since 1982 as a teacher, Director of Studies, teacher trainer and now materials writer. Now based in the UK, he has also worked in Spain, Switzerland, Hungary and Argentina and has given teacher training sessions in more than twenty countries around the world. He is the co-author with his wife Sarah Cunningham of the best-selling adult course Cutting Edge .

Araminta Crace is a well-respected ELT writer, and is one of the authors of the best-selling Gold exam preparation series. When she's not busy writing, she likes to "do Ashtanga yoga and go camping, though not necessarily at the same time!" Araminta is the co-author of the Pre-Intermediate and Upper Intermediate levels of Total English .