Boo! is a wordless story about a little ghost that is trying to scare the other ghosts in his family. The book has vivid illustrations that make it interestingto read even though there are no words. It is fun and the little ghost is really cute. He tries everything to be scary from being a vampire to Frankenstein, but the only way he is scary is when he accidentally runs into a sheet and is a “ghost.” When he makes a ghost costume with his sheet, he is finally able to be scary!