Before taking this lecture, I listened to the basic lecture, but I couldn't understand it in the middle, so I bought two books and studied on my own. After struggling and getting a grasp of the concepts to some extent, I thought it would be helpful to listen to the practical part, but now that I listen to it, it feels like there are really basic and non-basic parts together. While listening, I felt that this was really the basics. If I had gone through this lecture twice instead of struggling with the book, I feel like I would have grasped the basics much faster and more solidly. And above all, this is the first time I've taken a complete course throughout my elementary, middle, and high school years. ㅋㅋㅋㅋ I plan to listen to the entire roadmap. I recommend it to those who are new to Spring Boot. Even if you don't understand it, just listen. I don't think there's a more basic lecture than this. The lecture is refreshing, and the instructor may or may not know it, but he has a sense of humor that he doesn't know, so you won't get bored while listening. He seems to be a bit of a comedian, so I was able to listen to the end. Thank you.