We saw this happen with Morganville all the books had been published in small paperback versions and then on book 10 they went with a hardcover book. Vampire Academy and House of Night also start off paperback and move to hardcover. My personal opinion I would have liked for them to stick to the original green Wolfsbane cover for the hardcover and then change it for the paperback, because I like for all my books to match. So what are your thoughts?
Night Shade (paperback)
Wolfsbane (New cover for both hardcover and paperback)
Wolfsbane (Old cover that will not to be used)