I am leaving a review because I am so grateful to the teacher for the lecture. In fact, I was very worried about whether I could follow this lecture before taking it. Before starting the lecture, my learning level was Java, Spring, Spring Boot - I listened to the basic lecture once Thyemleaf, JPA, HTML, CSS, Javascript, Jquery, Git - I only got a taste of it Spring Security, Test writing method - I didn't even know what it was That was it, and I was able to create a very, very simple bulletin board using Boot, JPA, and Thymeleaf on my own. I am currently about 55% done, and I am very, very satisfied. This is how I am learning. In the lecture, from the beginning, the teacher explains what we will implement today and shows the process of writing the code directly, and uploads the commits at the beginning and end of the lecture. I created two project files, one for commit checkout and one for me to follow along. I followed all the codes in each lecture, and if there was an error or the version did not match, I checked it out from another project and compared it to implement the functions of the lecture and moved on. Although other reviews or even Mr. Kiseon himself said that the lecture was focused on practice and did not explain the theory in detail, I felt that he provided sufficient explanations for the minimum required to create a web project. Of course, he did not explain in detail what parameters are used in each method used in Spring Security, but I don't think that is necessary. You can realize it as you learn, and if you need it, you can look it up yourself. If you have learned the basics of technology and want to learn how those technologies are used to create a website, I highly recommend this lecture. I also have 45% of the lecture left, so I will try to follow along more diligently in the future. Thank you for creating such a great lecture.