Ten Rules for Living with My Sister by Ann M. Martin is a book about a 9-year-old girl named Pearl and her 13-year-old sister Lexie. Lexie and Pearl fight like all sisters do, of course. Most recently, Lexie hung a sign on her door that lets Pearl know she’s not welcome. The story is told from Pearl’s perspective. She loves to make lists that compare herself with her sister. Room? Lexie: neat and Pearl: sloppy. Lipstick? Lexie: yes and Pearl: no. Read Ten Rules for Living with My Sister to find out if Pearl and Lexie can ever get along.