Paul Davies graduated from Trinity College, Dublin, Ireland. He taught English at the British Council in Madrid from 1963- 1965. From 1967- 1972 he taught English in Mexico. In 1973, he received an MA in Linguistics from the University of Reading. He returned to Mexico to teach English and now works for the British Council in Mexico. He is co-author of Success in English Teaching, published by Oxford University Press. Tim Falla graduated from Oxford University with a BA Honours degree in Modern Languages. He took a Post Graduate Certificate in Education in English for Speakers of Other Languages at London University and taught in Japan, the UK, Spain, and Saudi Arabia. From 1988 until 1992 he was an editor in the ELT Division of Oxford University Press. Since then he has worked as a freelance author.