The lecture covers the basics of Spring overall. However, there was a lot of new, specific, and accurate content that made me feel ashamed of my small career. This lecture also explained various methods with actual codes and gave the students a choice, which was really good. It gave specific examples of the pros and cons of each method and the situations in which each method is mainly used in practice, so I think that junior developers who lack experience like me will be able to escape from passive coding thinking, “Everyone else does it that way,” and put a clear purpose and reason into the code they write.