First of all, I think the biggest strength is that it is a class that is easy to understand. Although the subject of abstract networks is one that students easily give up on, it took me about a week to finish it because it was explained in an interesting way. It is a lecture that is easy to understand, unlike the goal of memorizing and finishing (of course, there are things that need to be memorized). I plan to listen to the application part diligently as well.