I studied for 12 hours straight. (Payment at 13:00-14:00, completion at 2:00 AM the next day) I also had experience creating a project with CBV before, but it was a valuable lecture that allowed me to solidify the knowledge and concepts of DRF that I had scattered and didn't know while studying alone! - Tips for those who are thinking of taking this lecture - 1. "This is for readers who have used Django basics and class-type views." This is not a lie. It is difficult for those who are completely new to Django to keep up (at a fast pace). The concepts are explained very well. So you can get a lot of concepts even in short chapters. (This is a lecture with only the essence) 2. From the beginning of the first lecture, you will use the source code that you have already used, so those who are taking the lecture should get the source code from the lecture provided or refer to the last lecture. 3. You can get a lot of basic concepts such as how to use the official documentation, custom output using overriding, etc.