About Quang Duy

Quang Duy is an English teacher and author from Vietnam. He has learned the ins and outs of teaching and the education business by running his own school for the past 15 years. Frustrated by the poor-quality grammar exercises found all over the Internet, he began writing his own. His books became a local success, and now his school is the only one in town with a 2-year waiting list. He believes that mean people fail—and to avoid failure, he decided to share his work here on this website. You’ll find ready-to-use grammar exercises with answer keys, teaching tips, business insights, and maybe a few thoughts on life. Enjoy!