Does the subject want to ask "what is the source of the book"? Application of communication management between home and school. Yuan Shuxiang is an app released by Beijing Yuan Shuxiang Education Technology Co., Ltd., which is an application of home-school communication management. Committed to providing professional, complete and high-quality educational solutions for primary school students aged 6 to 12. Taking trusteeship education as the core business, integrating excellent courses, we are committed to cultivating healthy, confident and competitive pupils for society and families.