Jon Naunton worked with the International House organisation for twenty years. His teaching and writing career have taken him to Greece, Spain and Poland and many other countries. He has written a number of coursebooks in the areas of exam preparation, business English and adult general English. His guiding aim is to produce engaging, thorough and reliable material for his teaching colleagues and their students. John Hughes is an award-winning ELT author with thirty years’ experience of teaching and teacher training. He has worked with learners and teachers from all over the world and is a well-known conference presenter. For National Geographic Learning, he is an author on the course series Life, World English, Third Edition World Link, Fourth Edition, Success with Business, and Total Business. He’s also the author of the methodology title, Critical Thinking in ELT. His website is www.johnhugheselt.com.