billege

I didn't think this fit in literature, or knowledge either...

I have a book. On the copyright page, about two thirds of the way down, is this line:

"1 3 5 7 9 10 8 6 4 2"


Does anyone know why that's there?

I haven't noticed this on all my books, but now I'll have to look.

If anyone happens to work in publishing, I'd love to know. Thanks in advance.