I really enjoyed this lecture by Younghan, who I trust and watch. While I was working as a trainee at a company, I reviewed Spring MVC through this lecture, and I was able to learn additional functions that I didn't know about while preparing for employment. Section 4 was more than I expected. Although it was a small structure, I was able to gain great insight into structural design and refactoring through the flow of changing the design structure and functions. I really liked the explanation of ViewResolver and the flow in the MVC structure in Section 5! It was something I had been studying recently, and you pointed it out perfectly..! It was a good keyword to learn about the extension points of Spring MVC. ㅎㅎ I'm really looking forward to the next lecture..! Thank you so much for making such a great lecture!