Wimpy kid The Deep end : first the cover page of the book , like other Wimpy kid series on the cover page of the book Gregory is shown in a wacky situation. On the book cover he can be seen hiding inside the pool from other people. As the readers will go through the book , they will find more about the situation and will find it as one of the funniest part of the story . As usual , the book cover is not very appealing but ‘never judge a book by its cover’ , this quote actually fits to this book .