Honestly, I don't understand why it has such a high rating. For a beginner's course, the explanation is not intuitive, and for intermediate and above, there is not much content. It seems like they just filmed the interpretation of the basic explanation text of the Docker official documentation + QuickStart practice. I just don't understand why people who wrote positive reviews wrote that. If you are a beginner, it seems more beneficial to read the Docker official documentation with Google Translate, and if you are an intermediate, it seems more beneficial to learn by just struggling with a toy project.