Christien Lee, who has dual Canadian and British citizenship, has worked in English Language Teaching for more than 20 years. His roles have included teacher, teacher trainer, curriculum developer, materials writer, director of studies, consultant, and author. In addition, he founded and ran an award-winning private language school in Canada for almost ten years. He has wide experience in ELT, but specializes in academic English and, particularly, exam preparation. Currently, his focus is on developing innovative e-learning materials and writing textbooks. He is the author of several ELT titles. This is his first book for National Geographic Learning.