Laser 3rd Edition is a five-level series aimed at teenagers. We wanted to create a course that would engage students with great content to respond to, while at the same time giving them a firm grounding in the kinds of task they would face in national and international exams. Laser has become a bestseller in a number of countries, and I'm very proud that this course has helped, and continues to help, so many young people learn English. I've met students who have studied the whole series and who now have excellent English and have become English teachers. That's probably the most satisfying aspect of what I do.