I made this model primarily to test laser print transfers. The cover of the book in this case is a color laser print on transparency. It's printed backwards, with a bit of overlap around the edges. The transparency is either taped or glued to the print bed, and the model is printed on top (with a bit of Z offset to compensate for the thickness of the transparency).
Alternate methods of applying a cover:
The transparency transfer worked OK, but there are some visible defects in the image.
The author marked this model as their own original creation.