1st Instructor = Teacher Kim Young-han 1st Instructor Pros: Amazingly, you can understand just by watching the lecture. 1st Instructor Cons: You will be mistaken in thinking that you have absorbed all the knowledge in the lecture. I will go review.. Ah, I am not a major, but thanks to the teacher's eye-level lecture, I am not giving up and am working hard!! The teacher's lecture is really the best!! Lastly, Java Advanced.. When will it come out..ㅠ I am sorry to say this, but can you please keep taking pictures...ㅋㅋㅋ