I am a self-taught iOS developer who is not a major. Special note) Experienced in C, C++ in middle school and college I spent 2 years with anxiety wondering if I could compete with people who invested money and time, such as those who graduated from OO Bootcamp and took Allen's lectures. I wanted to take Allen's lectures in my first year, but the price was a burden, so I ended up taking them in my second year. Of course, I think the results after taking the lectures vary greatly depending on your own efforts. It relieved my worries to some extent, and it was a lecture that was helpful to those in their second year as well. Still, it was a lecture that comforted me that I studied hard for 2 years and worked hard. If you postponed your studies with excuses like you are currently working at a company, you are tired, or you are busy, I think it can be a lecture that makes you reflect and humble yourself again for someone else. No matter what situation you are in, I think it is a lecture that will help you in your current situation. The summary and organization are very well done, and the content is explained in an easy-to-understand manner. The app development course that is also provided also has a lot of things that are easy to miss, such as life cycles and rendering, so it helped me to organize my thoughts while reviewing. I tried to watch the lectures in order, so I missed a lot of the flow, so I extended the course period. Personally, I have more than a year of experience in Swift and iOS app development, and if the lectures get boring because of the content I already know, I think it would be good to learn what I need and don't know first. !! Alan's lecture is the best ㅎㅎ