After solving the problems in the "Noraengi" (yellow) workbook, I supplemented the areas I lacked with the online lectures, and it helped me understand much better. Thank you. I highly recommend these lectures.

I really enjoyed the great lecture! It was a huge help in getting my certification. Thank you.

Thanks to you, I passed on my first try even though I knew nothing about computers! The "yellow book" was so difficult that I wanted to give up, but thanks to you, I was able to finish it. On my second pass, I tried to solve the problems on my own and re-watched the lectures whenever I got stuck, which helped me find many familiar problems during the actual exam. Thank you so, so much.

When I was solving the "Noraengi" (Yellow Book) and reviewing the explanations, I couldn't really understand them just by looking at the answer key. But by organizing the explanations while listening to this lecture, I feel like I'm saving a lot of time and the concepts stick in my memory much better! I came here after watching your YouTube videos, and I highly recommend this! :>