Hello, Instructor Kim Young-han, I had studied Spring superficially before, but I didn't do well consistently, so I felt a sense of lack and regret. Then, by chance, I found out about your lecture, and I'm happily studying Spring every day with the roadmap as my New Year's goal. Why do you study and use Spring? Actually, I only read this content in words, but it never really hit me. I'm happy and proud that I learned it naturally, as you said at the beginning of the lecture. ^^ In particular, in the past when Spring didn't exist, the SOLID principles were like a chronicle, so I was able to listen to the lecture and understand it well, and I was able to immerse myself deeply. Since the lecture was conducted with such explanations, I was able to learn by comparing and thinking, not just writing and using code. In addition, after listening to the entire lecture, I was able to naturally associate the content with what was related just by reading the sections, which was a great help. I sincerely thank you for creating and providing such a great lecture. I will study steadily by taking Instructor Kim Young-han's lectures according to the roadmap! :)