Through this lecture, you can experience the basics of Spring in general, and above all, you can distinguish what you know and don't know about Spring. Also, it was good because you could figure out what you want to implement and study more. In my case, I was a non-major and started coding in earnest in the early part of this year (2023.3). I took this lecture in two parts. When I first took this lecture (mid-2023), I only took a few other Java lectures. At that time, I didn't understand the instructor's words and content well. At that time, I didn't understand why the code the instructor was implementing was necessary, so it was more difficult. Then, in September, I took this lecture again to solve the parts I didn't understand in the class (Thymeleaf, application.properties, etc.) while taking a backend course at school. I think this lecture would be the most suitable for those who have completed a boot camp or other education and don't understand Spring. If you are someone who has absolutely no experience with Spring, I think it would be more effective to take the course after briefly reviewing the concepts of @controller, @service, @repository, DI (dependency injection), and MVC pattern in Spring. Of course, the instructor explains the concepts above simply and clearly in the lecture, but since I have no basic knowledge, I understand it a little slower, so please read the review and I would appreciate it.