Thank you for the great lecture. I am very satisfied with the content. I was able to respond well to the problematic parts by referring to the frequently asked questions document. When the language or framework used in the lecture is updated, the quality of the lecture often does not keep up with the current version and is worse than when the lecture was released, but I cannot really feel the difference with Kim Young-han's lecture. I don't know if it is a characteristic of Java-Spring, but I was able to solve most of the parts I was stuck on with the answers from the supporters, the frequently asked questions prepared in advance, and the questions and answers that have been accumulated from before. The model used as an example in the lecture was the model I needed, and it was very helpful. I understand it better because I study while doing practical training.