You can quickly look at useful tools and instruments, and it seems useful for people who are working in the field. For those who are new to it and learning, I honestly don't know if it's helpful or if it's learning. It seems like just looking over the process of using these tools is the extent of learning... And I think the quality of the YouTube lectures is too raw? compared to the existing Inflearn lecture style..😢 Anyway, there are several tools like this and you can quickly look over how to use them or the concepts, so that was good.