This is Baekgi Seon's course that I trust and watch. I took the course because I had to use Spring Data JPA in a project without knowing the basic concept of JPA in depth, but it was very helpful for the project because it explained a lot of the basic concepts of JPA and explained in detail how to use Spring Data JPA and precautions. Thank you~ Also, after taking the Spring Data JPA course, I want to know more about JPA, so I'm studying it^^ Please continue to make many good courses. Thank you!