Biografía del autor Nancy Douglas is a teacher, materials writer, and editor who has been in ELT for over twenty years. She has extensive experience working with students from around the world and has co-authored several courses, including the best-selling series World Link and Reading Explorer. She has also edited print and Web-based materials for English language learners as well as professional development courses for teachers.James Morgan is the co-author of Cengage's best-selling series World Link. He has taught English in Japan and worked as an in-house development editor for a major ELT publisher. Since 1998, he has been a freelance writer and editor of English language learning materials, specializing in grammar and video. He believes the way to unlock each student's potential is through materials that are current, engaging, and meaningful. When he is not working at his computer, he enjoys traveling and learning about other cultures.Susan Stempleski is the World Link series editor, teacher trainer, and noted author of several texts on teaching with film and video. She currently teaches at the Hunter College Intensive English Language Institute of the City University of New York and Columbia University Teacher's College, New York City.