The background of the cover should be the campus scenery of the primary school affiliated to Shanghai Jiao Tong University, such as the school gate or the campus green belt.  In the center of the background, an open pocket is placed, and a small magic wand is placed in the center of the pocket, symbolizing the magic element in scientific fairy tales.  At the same time, some scientific experiment equipment or science-related items can be placed in the pocket, such as magnifying glass, microscope, chemical reagents, etc., to highlight the scientific elements