He teaches the overall structure and engine flow of Unreal Engine in a way that's easy for students to understand in the necessary direction. When studying Unreal Engine, there were times when I became curious about the engine concepts and the overall creation order of classes. However, when I actually tried to look into it, I was often overwhelmed by the vast amount of code. But in this lecture, he appropriately cuts down that vast code and explains only the parts that students need, so it was really great how he explained and helped me understand the necessary and appropriate things in engine code where it's easy to lose your way and direction when studying alone. Engine code that could be very difficult if you just look at the code, but through conceptual lectures consisting of diagrams, he first helped me understand the concepts in the areas I needed to learn and then explained the code, so there wasn't much difficulty. The length of each video is also short, so there's no burden to start. If you want to understand Unreal more deeply and apply and utilize it, this lecture seems to be a must-take course.