On the product card for coil bound book it is NOT showing this on the purchase page but shows it in the backend:
"Choose whether you would like the Black & White ($25.99) or the Colour Art ($31.99) print version.
It generally takes 1-5 business days for the book to be printed. I will send a confirmation email once it's shipped."
I'd post screen shots but I don't see a place to add images.