Hello~! I am a student who is listening to the teacher's class diligently. The lecture content is the content, but since you have experience in public institutions, I am more immersed and I am comforted by the fact that I am not the only one looking for and learning this (I was surprised by the number of students taking the class). It is so good. (The moment the confirmer or superior sees the press-button, there is a high possibility that they will get angry at me... But I will not become a part of the sad and humorous scene of working overtime for days on end, saying, "Oh, it's so hard. There is so much work to do" or "I am working hard!" ^^) Also, I am leaving a note because there is something that is confirmed to be a typo. In the lecture "Getting Document Information from Opened Hangul Files with Python", If it was intended for emphasis, it doesn't matter, but I found a typo in the sentence below~! :) As a result, I found out why seagulls usually don't dive at high speeds (speed). It may not seem like much, but it's disappointing when a good lecture has flaws~! Thank you!