If it's a lecture by 잔재미코딩, it's a must. I took the complete SQL course and complete Python course, successfully transitioned my career to data analyst, and now I'm working overseas. (I purchased all the courses and posted questions with my previous account, but I lost that account and had to create a new one😭😭) Even someone like me with absolutely no coding experience could understand and complete my own projects, so you can imagine how well he explains things. I've taken courses from various instructors on Inflearn, but personally, I don't think anyone can match his teaching skills. He doesn't just read text monotonously but explains why things work in a way that really sticks in your ears. He's simply the best. Now I have a new goal, so I'll continue the journey from machine learning to deep learning together. Thank you always for the great lectures.