I used to develop web side projects, and at that time I came across redis because of jwt, but I felt like I was just following along without any reason, so I saw an advertisement for Inflearn, and I watched the preview, and it was good, so I paid and watched it all. It was a lecture that explained it well enough for beginners to follow, and It only explained the core parts, not the specifics, and gave me the strength to find and do the rest of the questions even if it was difficult. You also previewed the rest of the lectures, "Why do you learn?" I think you did a good job of letting me watch that part for free as a preview, and after watching that preview, I plan to buy two more (sql, ci cd), and I think I will buy docker when I have time. The type of people I do not recommend this lecture to are Those who already have a general understanding of redis cache and have practiced it and have the basics, so they may be disappointed. I recommend this lecture to those who want to learn redis but can't make progress because they can't understand it even after searching. If I explain the difficulty level as a beginner lecture, based on my standards, - Various practical exercises: Introduction - Difficulty level of understanding the content explained: Beginner