Take a peek in or out the window! Then use the letters to write a message on the white book under the window.
The bookshelves are full of good books. A couple of them were made using glued on felt pieces, and a couple of the books were printed on fabric and sewed on felt. They each have cardboard insides to help them stay sturdy through lots of useage, and velcro squares on back to stay on the bookshelf.
What book would you like to check out today? I'm sure they could be returned in the mail slot!
The fanciest book of all got a little extra special trim.