I studied grid theory once before by only looking at other blogs, but I didn't understand it easily ~ The teacher's lecture explains the difficult parts in an easy-to-understand way ~ I definitely learned it easily when I followed along and practiced. Of course, I understood it faster because I had taken many lectures for a long time before. Now, I have some burden to prepare for employment by myself by making a portfolio, but since it is a webpage that I will make by referring to the results I have made while taking the lectures so far... I want to do it and tell you good news~~ Thank you so much, teacher^^