Mallory McDonald has four big problems. Problem #1: The boy she likes doesn't like her back. Problem #2: Her brother is mad at her. Problem #3: Her dad is upset about her math grade. Problem #4: Her brother's dog won't leave her alone, and he smells terrible! When it comes to boys, brothers, dads, and dogs, only one thing is Mallory is about to become an expert! A NOTE FROM MALLORY Welcome to my official guide to boys, brothers, dads, and dogs. Hopefully, it is not the only guide available because THESE ARE FOUR VERY COMPLICATED TOPICS! But lately, I have learned a lot about all of them. So if you want to know what I know, just open up this book and start reading.