Which should I read first, the Book of Changes or the Plain Book?

Some people think that the Book of Changes should be read first, because the Book of Changes is the head of the group of classics, and Sushu is a concrete practice under the theoretical framework of the Book of Changes. Some people think that we should read the Book of Changes first, because it pays more attention to practicality and operability, which can help people better understand and use the Book of Changes.

Generally speaking, whether to read the Book of Changes or the plain books first depends on personal needs and learning styles. If you want to understand the philosophical thought and theoretical framework of the Book of Changes more deeply, you can read the Book of Changes first. If you want to better apply the theoretical knowledge of Yijing to practice, you can read Yijing first. No matter which order you choose, both of them are very valuable classics, which deserve further study and reading.