1. Choose paper of moderate thickness;
2. Use paper to wrap the volume of the book. The width of the paper should be five inches wider than the book;
3. Use paper Completely wrap the book and wrap it tightly so that all parts are of equal size;
4. Cut both ends of the spine at the paper part of the spine so that the paper just completely wraps the spine and fold the paper inward along the four lateral sides of the book;
5. First fold the paper inward along the horizontal or vertical edges of the book, four horizontal edges and two vertical edges;
6. Fold the four corners of the book cover inward along the edge of the book and fold it into an isosceles right triangle. The edges of the triangle should coincide with the edge of the book;
7. Fold the book cover inward along the four triangle edges to completely cover the book;
8. Bind the book and place it on the mattress. After sleeping at night, the second time I took it, I saw it was smooth and beautiful