Reorders can be placed through Book Creator just like the first time you ordered, but with one additional step. You must duplicate your order.
Launch Book Creator, and click Open an Existing Project

In the next window, select the project you would like to order, however, do not open it.
When you’ve selected it, a button near the bottom left of the window appears showing, Duplicate Project.

Click Duplicate and give the project a new name, like My Book Copy.
After renaming the project, open it.
Now you can make edits if you want to or click on the green shopping cart icon and checkout.
Remember to complete the uploading process in the Book Creator software once you’ve completed the online ordering process.
Currently you are unable to change the size of your book, it can only be ordered in the same size unless you start the design over again. A new version of software is coming soon which will allow this feature.