If you don't have any of Mo Willems books in your library, I highly encourage you to purchase them for your own classroom library. I have written about his books in an earlier post here. And I really love the fact that Hyperion Books for Children made a hard cover series of his books for a very good (hard cover) price of $8.99.
Has anyone been lucky enough to read a preview copy of this book? If so, I am dying to find out what you think! Like I said before, I know I won't be disappointed! I just love his books as much as my students do!