Renee, thank you so much for your heartfelt and valuable review. I was truly deeply moved to hear that you first learned about the book and then also took the lecture. I hope the book and lecture create synergy together and are even a little helpful for your learning. As both an author and an instructor, I feel a great sense of reward. I put a lot of effort into explaining from basic concepts step by step so that those new to SQL could understand more easily and utilize it in practice. As it was the first lecture launched on Inflearn, I wondered if there might be any shortcomings, but your words that you understood it well are a great encouragement to me, who prepared the lecture. Thank you for consistently following along throughout the course and for leaving such a warm first review. If you have any questions or feel anything is lacking in your future learning process, please feel free to let me know at any time. To provide better content, I will continuously improve and supplement it. Lastly, I hope you have successfully taken the first step in SQL learning through this lecture, and I sincerely support your future growth and great performance in practice. Thank you!