Diane Hall is a distinguished figure in ELT and has co-authored Longman Advanced Learners' Grammar and Distinction English for Advanced Learners along with many others. An "eternal student", she has qualifications from an MA to a diploma in Film Studies. Diane is the co-author of the Elementary level of Total English.

Mark Foley is a prolific ELT writer and has co-authored Longman Advanced Learners' Grammar and Distinction English for Advanced Learners among many others. Before becoming a teacher in 1981, Mark was an architect and earned a Master's Degree in Architectural History. Mark is the co-author of the Elementary level of Total English.

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.

Rachael Roberts has been a ELT teacher and teacher trainer for over 20 years, working in Egypt, Portugal, Brazil, Poland, Latvia and the UK. She currently divides her time between working as a teacher trainer at the University of Warwick and writing ELT materials. Among other titles, she is the author of Premium B1 level and the new edition of Total English Intermediate.