I sincerely thank the instructor who created this course. I wish I had been exposed to such courses when I was a student. When I tried to study on my own, I would forget later and go back to study, and I would often get confused because I didn't know what was important. It's like making clay without a framework, and after a few days it would collapse and I would have to start over again. But this course was like the 'framework' I needed. It was really helpful because it clearly grasped important concepts and provided a direction for my studies. I'll watch the advanced version too ^^