I am a non-major who does not know anything about programming, but I was learning on my own because I had to deal with C# and Unity. When I read the book alone, I spent 2 months not understanding and not being able to apply it, but after listening to this lecture, it was solved right away... It was easy to apply because it was explained with examples. I should have taken the lecture earlier instead of reading the book alone. I hesitated because it was a paid lecture, but it is worth the money. I highly recommend it to those who are not getting the hang of it while reading the book. I have not completed the entire course yet, but I am writing a review because I can. Thank you for the great lecture.