From Denise:

Murphy’s Law strikes again!
The paperback books that looked so good in the proof copies turned out to have cover troubles, at least in the ones I ordered from Amazon. I’m working with Create Space to make sure it gets straightened out—but that means the books may show up as “unavailable” off and on through the weekend.
As with any print-on-demand glitch, if you got a badly printed book you can ask your bookseller’s customer service department to replace it.
It could be worse. The interior of the book is fine, at least in the copy they sent me, and that’s the part that really matters.
And of course, the ebook versions are totally unaffected.
If you are trying to use the discount code for newsletter subscribers, I’m extending the expiration date to August 3.