Hello, Mr. Kim Young-han! I started from Spring Introduction, completed the WebMVC roadmap, and have now completed the JPA Practical 1 lecture! When I first started Spring, I struggled while watching the introductory lecture, but now I think I will be able to watch the introductory lecture again with pleasure. I was able to review the contents I learned through this lecture. I will continue to listen to the lecture. I sincerely thank you for the in-depth lecture despite your busy schedule! I was able to study Spring with ease thanks to the instructor!!