"When Mia arrives at her new school, she has to decide between the Popular Girls Club and the Cupcake Club; but the choice makes her feel like she's choosing between her divorced parents and she wants to mix things up instead of being stuck in the middle"--Title verso page.

All of Katie's friends in the Cupcake Club have outside interests, so Katie sets out to find an extracurricular activity, but when she makes the softball team, Katie realizes that team sports are harder than she expected.

When Katie's mom asks her to spend time with Emily, her boyfriend's daughter, Katie brings her to a meeting of the Cupcake Club and things go well, but maybe too well for Katie's liking.

Mia tries to make friends with Olivia, the new girl, but when Olivia makes fun of the other Cupcake Club girls and tells Mia she shouldn't hang out with them, Mia must make a decision about her new friendship.

When Katie learns that her mother's new boyfriend is her math teacher, Jeff Green, Katie is accused of getting special treatment in class, and it's the Cupcake Club to the rescue to help Katie deal with the rumors and the changes in her life.

Hired with the Cupcake Club to serve a huge order at a neighbor's outdoor party, Alex, knowing that her crush will be in attendance, struggles to find just the right outfit when she discovers that she has reached an in-between size.

Who's afraid of middle school? Not Katie Brown, After all, it can't be that different from elementary school. But, boy, was she ever wrong! After her best friend ditches her for a new group of friends called the Popular Girls Club, Katie is left alone and starts to wonder if there's an Unpopular Girls Club she can join. Luckily, Katie finds her way with a great new group of friends and together they form their own club. Four friends plus cupcakes...

"Alexis is the clear leader of the Cupcake Club: She's organized, punctual, and happy to take on the stuff like scheduling, budgets, invoicing, and the things that the other girls don't really want to do. In other words, the "unfun" things. But one day Alexis feels particularly unappreciated and informs the Cupcake Club that she is no longer in charge! After deadlines get missed and supplies aren't bought, the girls realize they definitely need a...

"Emma takes on a few more jobs and chores to afford a junior bridesmaid dress, but she might have bitten off more than she can chew"--Provided by publisher.

For as long as Katie can remember, it's just been her and her mom. But that's about to change. First her mom gets a boyfriend. And then Katie gets an email from her dad, whom she's never met, saying he wants to get together. Katie's not sure she's ready for so much change in her life. With so much happening at once, Katie's counting on her friends in the Cupcake Club to help her find the sweet side of what seems like a sticky situation.