While preparing for employment, the word architecture always appeared in job postings, and I was curious about it, but I learned a lot through the lecture. As a student who was at a loss because there was no clear explanation in any technical blog, it helped me a lot! Looking at the list of reference books? papers? shown at the end of each lecture, it seems like you made the contents of dozens of books into lectures. This is a must-have lecture for job seekers who feed them difficult contents!