This book is written by Jacqueline Wilson.

This book is great and is about  two sisters called Melissa and Marty, short for Martina, who hate each other badly and are so different. Marty loves superheroes, homemade animals and Melissa is girly with makeup and they find out that they have to share a room. What will they do? This makes them fight even more.

My opinion of the book is that it is amazing, funny and will make you laugh so much. My favourite part is when Melissa’s friends are over and Marty plays all these jokes on her and all of her friends. I give this book 10/10 because it is astounding with lots of detail. Marty is my favourite character because she loves all the animals that she plays with. My least favourite characters are the parents of Marty and Melissa because they both just kick Marty out of her Marty den (her room). 

I would recommend this book to people who have sisters or brothers, but even if you don’t have siblings you will still find this book amazing.