Xining Book is a popular variety in the comic book market. In 1970s and 1980s, many comic books were sent to Xining Library and then exported to the market. Because the weather in Xining is good and dry, which is very conducive to the preservation of comic books, the appearance of Xining Book is recognized as the top in the market and the price is also the highest. The same cartoon is only worth 100 yuan, and Xining is worth 400 yuan.

Generally speaking, the way to confirm whether it is "Xining Book" is to identify the seal of Xining Library on the book. The same is true of Tianshui Book!

I hope I can help you!