I was worried and started out as a beginner. When I first listened to the first 10 lectures, I didn't understand anything, but as I listened to it repeatedly, I gradually understood more and more, and I began to understand what the instructor was saying. Other lectures are good, but Eun Jong-seon's lectures are really pleasing to the eyes and ears. I think I made a good decision to sign up for the class. For those who are just starting out and trying it for the first time like me, I recommend that you don't worry and try it from the beginning because you won't understand. I think it's best to listen to all the classes repeatedly.