I'm doing backend development, but when I try to look at the HTTP spec, it's so vast that I just keep forgetting what I need at the time. I looked for an HTTP lecture on Infraon, but I was disappointed that it wasn't there, so I paid for Younghan's lecture on the morning of the opening day (I think this will be my first payment for this lecture. Haha). I finished it today. It focused on the things I mainly use when developing, and it was good that the explanations were easy to understand. I think it will be a great help for future development. It must have taken a lot of time and effort to prepare a lecture of this quality, but thank you for continuing to give good lectures. I hope you will continue to give good lectures in the future. Thank you!