It was a great help in understanding Spring Core. I was assigned to create an operational tool using Spring MVC at my company, so I had to study Spring in a hurry. I listened to this lecture and the Spring Boot lecture together, and it was a great help in grasping the framework of Spring and Spring Boot. After taking about 75% of the Spring Boot lecture, I listened to the Core lecture, and I was able to understand the Spring Boot content that came up here and there, which was good. I will take the remaining 25% of the Spring Boot lecture and leave a review. p.s. I am a junior of juniors who joined Naver a little over 10 months ago. I am a newbie, so I have a lot to study, but I am studying a lot by watching Giseon's YouTube and Inflearn lectures. Thank you!