Typing that I used when I needed to look it up at work. When I felt that I lacked an emotional approach to object-oriented development while doing amateur development, I found this lecture and took it at the moment I was trying to knock on the intermediate or higher level developers. It satisfied a lot of what I wanted, such as the short lecture time, natural examples, and concise and clear explanations. Of course, I learned additional things by using gpt and looking at the documents while listening to the lecture, but overall, when I feel the need to take it once, it seems like a good choice to eat two or three less chickens.