It's a lecture for beginners of the C language, but it seems better for majors than beginners. It's not very in-depth on computer architecture and operating systems, but it's better for people who have tried C language at school to review it. It's much more detailed and you learn more than you would if you were to listen to it at school. It's 52 hours long, and there are a lot of things that are a bit unfamiliar with the tool settings and content, but even if you take that out, it's still helpful overall. I've listened to a lot of programming lectures, but this one seems the most satisfying among the ones I paid for. Now I have to listen to the Tta-bae C-PL.