Based on this, I suggest the cover design as follows: First, 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, etc.  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 pockets, such as magnifying glasses, microscopes, chemical reagents, etc., to highlight scientific elements.  Above the title, use a large font to reflect the title "Yuanyuan's Magic Pocket". The font should be clear and clear, and the color can be dark, such as dark blue, dark purple, etc., to highlight the mysterious feeling.  Below the title of the book, use a small font with the words "Shanghai Jiaotong University Affiliated Primary School". The font color can use the color of the school logo to emphasize the school culture.  Finally, in the corner of the cover, some illustrations or photos of class students can be placed to highlight that this is a science fairy tale book created by students and increase the sense of intimacy.