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.
Bruce Rogers taught ESL and test preparation courses at the Economics Institute at the University of Colorado, USA, since 1979. He has also taught in special programs in Indonesia, Vietnam, Korea, the Czech Republic, and Egypt. In addition to this series, he is the author of Introductory Guide to the TOEIC Test and The Complete Guide to TOEIC Test, both with National Geographic Learning.
David Bohlke has over 25 years of experience as a teacher, teacher trainer, program director, editor, and materials writer. He has taught in universities, high schools, language institutes in Japan, Korea, Saudi Arabia, and Morocco, and has conducted multiple teacher-training workshops in Asia, the Middle East, Latin American, and Africa. David holds an M.A. in Applied Linguistics/TESOL. He is currently based in Singapore.