Don’t do this to our books!

Every sticky note label that you put in one of our books leaves a residue. You can clearly see the rectangles in these pictures, where we have removed the labels.

They damage in 2 ways -they can actually accelerate the degradation of some papers. And they leave that residue, which attracts dirt that promotes the growth of mold. So don’t do this to our books or we’ll feed you to the penguins!