The More, the Merrier — Anne Mazer

Abby Hayes is an ordinary fifth grader trying to invent a role for herself in a seemingly perfect world. This series combines the edge of BRIDGET JONES with a send-up of self-help books.

When Ms. Bunder asks the fifth grade to write about their bedrooms, Abby realizes something awful: her room is boring. She decides to paint her desk purple, her favorite color, but before she knows it Abby's whole room is purple! Luckily, her end-of-the-school-year party will be just the place to show it off to her classmates.