Paul MacIntyre earned his MA in TESL from Simmons College in Boston, Massachusetts. He has been an ELT professional for over 20 years. Paul has teaching experience in Japan and the United States, and as an editor participated in the development of numerous ELT courses for classrooms around the world. As a writer, he has contributed to various major course ... Read morebook and testing programs. For National Geographic Learning he is proud to have authored Reading Explorer 2, Reading Explorer 4, and most recently Pathways Listening and Speaking 4. 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. Show Less