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Can I put type on my spine?

How wide should my spine be to have text, for a paperback book?

Ideally we want a spine that is at least 1/4"--wide enough for a very tight spine with text that is 1/16″ high.

We recommend leaving 1/8″ on each side of the text, because the cover can shift during printing and binding, so you don’t want the text to be right up to the edge or over it when it shifts.

Spine widths can be calculated here