How do I add spine text to my hardcover book?
Adding spine text is easy!
iOS: First, make sure you have a hardcover book selected - you may find this option above the cover page on the "Book View" screen. Then, tap "Preview" and tap "Tap here to add spine text".
Android: After selecting a hardcover book, a dialog box will pop up prompting you to add text to the spine of your book. Simply add the text you wish and then tap "Set Spine Text" to continue to checkout.
(Spine text is not available for softcover books.)