Problems arise for Amelia when she starts sixth grade at the same middle school where her older sister Cleo is an eighth-grader, and she gets the school's meanest teacher for three of her classes.
The hand-lettered contents of a nine-year-old girl's notebook, in which she records her thoughts and feelings about moving, starting school, and dealing with her older sister, as well as keeping her old best friend and making a new one.
While on a trip to attend a family reunion and to meet many of her father's relatives for the first time, Amelia records in her notebook her hopes, fears, and impressions.
Despite the discomforts of biting bugs, hard mattresses, and exhausting hikes, Amelia enjoys sleepaway camp with her best friend Carly until they both develop crushes on the same boy.
Amelia records in her diary a nightmare come true when her older sister tags along on a sixth-grade class trip, and Amelia must deal with her snoring and disgusting eating habits.
To spread gossip, you need to know stuff and, you need to know how to tell it in an exciting way--but you have to be careful, since gossip is never nice, is the summary of the story.
Now in sixth grade, Amelia records in her diary all of the problems that arise when a new girl at school seems to be passing nasty notes to Amelia and trying to steal her best friend.