2. A book that sounds just perfect for me, Kate Raworth's Wigs is available on Amazon for $5 for the hardback and $14.6? for paperback. From the publisher's perspective, the difference in the cost between each version of the book seems negligible; it may cost a little bit more to produce the hard cover, but certainly;r not more than three times as much. Hardback versions usually also get published a few months before paperback versions