I listened to it to prepare for an interview as a server developer this month! I heard a lot about Docker from people around me, so I was nervous before the interview, but thanks to this lecture that covers the theory from beginning to end and also goes into every nook and cranny of hands-on, I think I now know exactly how to use it and why it's necessary. Even if I pass the interview, I'll review it well during the remaining period!! I recommend this lecture to beginners like me.