College seal and dean's signature, of course. Write the proof of reading on your school's university stationery or stationery. The reading card is your quasi-fake card, which is of a nature. It is best to include the following information: You are a student in Class XX of our school, and you are doing well in school. Then you know when you will go to Germany for a few days, and the school has given you a holiday. If it is winter vacation or summer vacation, just write it directly. Who will bear your travel expenses during the tour? Ensure that you return to China on time and abide by local laws and regulations.