Not a bad lecture to get an overall feel for Spring It is honestly disappointing that the lectures are not prepared in advance, but explained as they are from reference documents and proceed through code examples that come to mind at the time. Because of this, the progress is not very smooth, so it is hard to say that it is good for beginners who have never studied Spring separately. It is not easy to understand after listening to it once, so you may have to read it 2-3 times. It is not bad for just getting used to the flow, but it is not very deep either. However, among the instructors who teach Spring online, the explanations are easy and detailed, so I paid after completing the Spring introductory lecture, but I think I will have to think about whether to listen to the connected lectures in the future.