I'm starting from Spring Introduction and taking the DB 2 lecture. I think I'll finish the roadmap soon. In fact, this is a review of the entire roadmap of Mr. Kim Young-han, but I wonder if it's right to leave it here in the basics, but I'll write it here anyway. Are you a junior with less than 3 years of experience? `Definitely` listen. I don't mean to look down on you, but is your company a small or medium-sized enterprise or SI? `Definitely` listen. Mr. Kim Young-han's roadmap is a masterpiece lecture that goes beyond simply providing knowledge and really levels up the mindset of a developer. Those who are developing in the field will agree. This job of a developer is actually a job where the gap in knowledge is really severe. In other words, smart developers are really, really smart. Ignorant developers, to be honest, are called coders, just copy and paste without thinking and work day after day. But the important thing here is that no one who is an ignorant developer wants to be an ignorant developer. Even though I know I am lacking, I still don't know how to study. I study by searching the Internet? Honestly, I think that is wrong. If you look at the things that come up on so-called technical blogs, there are some correct things, but there is so much incorrect information and so much fragmentary content that it is not helpful for serious study. Also, when I try to buy books and study them, they are all books that were published 2 or 3 years ago, and there are so many differences due to version updates and changes in technical specifications that I feel like I can't keep up with the trends. And in this situation, developers are also office workers and have to do their assigned work. They somehow make code that works and then move on to the next task... The daily routine repeats itself, and at some point, they become developers who just endure each day out of inertia. However, what I felt while listening to Kim Young-han's lecture was that I was deeply impressed as I realized the study method of 'how to study' to become a good developer. Also, during the lecture, you talk about practical problems and solutions, and other small tips.. I don't know how to explain this in words. It's really valuable know-how that you can't learn even if you pay money. I want to say that it's very valuable knowledge that allows you to learn how developers at top-tier IT companies, so-called Nekarakubae, think and solve problems. So, if you're preparing to get a job as a developer, you should definitely listen. I also recommend that people who are currently working listen. Sometimes, there are people who worry about the tuition.. Everyone's financial situation is different, so it's hard to say, but please listen anyway. You really won't regret it.. And lastly, Mr. Kim Young-han. Thanks to a teacher like you, even a developer like me was able to become a person. I hope you continue to do well and make many lectures..