3D space carving makes the folds of the facade more artistic, just like a book, which contains the ocean of knowledge. Marble is used as the handle, and the natural marble texture and color complement each other, which makes people feel relaxed and comfortable when touching it, just like the lock of a book, which locks the book delicately. It implies that the family has a profound historical heritage, is a family of scholars, and the family members are talented and broad-minded, and the family is peaceful and happy.