I've taken many other lectures, but this is the first time I've seen a lecture that is so systematic and detailed. It's easy to understand, the sound quality is really good, and the voice's diction is so good that I can't listen to the lectures for long because they're boring, and I'm the type who studies from books, but I'm listening to all of Lee Jeong-hwan's lectures! It's really helpful for students who have to prepare for their portfolios! Thank you for being a good example for your juniors.