Middle school student Jamie Kelly writes all the strange and sometimes not so wonderful things that happens to her or she sees during school in her diary and promises that everything she writes is as true as she wants it to be.
Jamie reveals to her diary that her worst enemy is a sweetheart, her best friend is a backstabber, and she decides to collect clothes with Isabella for a local charity.
Jamie Kelly reveals in her diary that she has agreed to be friends with Angeline in order to save her aunt Carol's marriage to the girl's uncle, and details the problems associated with the friendship.
As their school gets ready for the annual Fun Fair, Jamie and Isabella agree to compete in the bottle toss game and to terrible consequences for the loser.
Jamie Kelly writes in her diary about how her "flawless" friend, Angeline, discovers the real reason why Jamie and her best friend, Isabella, agree to join extracurricular clubs at the school.
Jamie Kelly, a student at Mackerel Middle School, shares her angst in her diary over her aunt's upcoming wedding in which she is a bridesmaid, the school dance, and a taco rendezvous with the cutest boy in school.
Jamie Kelly shares with her diary her excitement about the fact that students from Wodehouse Middle School will be going to Mackerel Middle School temporarily.
