Hello eju, thank you so much for completing the course to the end! The cookies and sessions part is currently being produced separately as part of an Express.js utilization course, where it will be covered in detail along with database integration, authentication, and security flows. In this course, I added text materials for reference first since you had questions in the middle, but I apologize for the inconvenience of not providing it as a video. Please feel free to ask questions anytime if you have any! Thank you so much again for taking the course. 🙏 🙇‍♂️ Whenever you have questions or need help with development, please feel free to use the open chat room below. You can communicate with other students, and I also visit frequently to share concerns together! 📮 Open Chat Room: https://open.kakao.com/o/gC10Fnoh I sincerely support your development journey always. I hope to see you again in the next course! 🚀