This is a really good lecture. It contains a lot of teachings for the price. I am surprised that I can listen to the lecture for less than the price of a book. The lectures are from beginner to practical... I am amazed by the content. In terms of the amount of lectures... It is a lecture that is worth 200,000 won. I think it would be better to finish the HTML/CSS lecture with this one lecture rather than going to an academy. It is really worth the money. I would have been lazy to write a review like this, but I am writing this because I am grateful to the instructor. I am halfway through the lecture... I was a mediocre beginner... I think I can move up to intermediate level by finishing this lecture. This is the first lecture I want to pay more for. Seriously... The only downside is... The sound was too low at the beginning of the lecture... I couldn't hear it even when I turned up the volume as much as possible... I listened without even breathing. About halfway through the lecture, I think the volume was adjusted to an appropriate level... It was okay. (I couldn't hear at all so I changed my earphones, and I think that's partly why it worked...ㅡㅡ) And I usually listen at 1.5x speed, and while it's okay for long lectures, the voices sound a little dry for short ones... Well, that's how it is. In those cases, I listen at 1x speed. There are really no downsides. I highly recommend it.