What does it mean to write a picture book next to the goods of gypsy businessmen in bullet hall 3?

There was a loud noise in the sky, and 4399 kissed me:

The picture book is written next to the goods of gypsy merchants, which means that the picture book can be activated after purchasing equipment. Even clothes are illustrations. It is recommended not to miss the purchase of yo O(∩_∩)O~

Ok, I have to help grandma cross the street quickly. See you next time ~