Now I'm back to writing a review. There are many bad lectures on the market, and many good ones, and I've seen countless books, sites, and lectures. I really recommend this lecture based on the Bloc pattern Cubit. I'll write down a few things I felt after listening to the lecture and completing the practical training. <Advantages> 1> Covers almost all of the core knowledge you need to know in Flutter ~ Firebase Authentication, Cloud Firebastore, Firebase Storage ~ State management: Cubit ~ Important controls: PageView, SliderBar ~ Modeling: JsonSerializable, Equatable 2> The instructor's passion is great! ~ Willingness to explain in as much detail as possible to Flutter beginners. ~ Samples with almost no errors <Disappointing parts> ~ For those who have some experience with Flutter, it feels a bit disorganized Example) Not finishing one source at once, frequent modifications and improvements due to added functions Of course, some people may see the disadvantages as advantages, but overall, I think it is a really great lecture and I could feel the instructor's efforts and will to convey. If there are additional lectures planned, I would like to see the following parts covered. ~ Social authentication other than Google and Apple (email/password, Kakao, YouTube, etc.) ~ Processing with Bloc instead of Cubit ~ Introduction to various useful packages and components ~ Other examples of authentication processes ~ Other use cases of paging processing Lastly, thank you for providing a great lecture. Thanks to you, many of the questions I had were resolved.