Lindsay struggles with jealousy and self-esteem issues when satisfaction with her work at her parents' restaurant is challenged by a glamorous and exciting class newcomer whose family has just opened a rival bakery.

When Katie learns her mother's new boyfriend is her math teacher, Mr. 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.

Moving on with her Cupcake Club friends despite lingering resentment over being ditched by her former best friend for a more popular group, Katie resolves to confront Callie and struggles to find ways to repair the friendship.

"When Mia asks the Cupcake Club girls to be junior bridesmaids in her mother's wedding, everyone is super excited about the idea--especially when they find the perfect dress for the occasion! It's Emma's dream dress--except for the price tag. And with her mom recently out of work, there's not a lot of room at the Taylor house for extra expenses. Not wanting to disappoint her friends, Emma decides to take on a few more jobs and chores around the house...

"Forced to join her family to look at colleges with her older sister, Casey finds her spring break looking up when she runs into her summer crush who gives her an idea to make Donut Dreams donuts even more famous"--Provided by publisher.

When fashionista Mia hears someone is starting a fashion club at school, how can she resist? After all, working in fashion someday is her dream. But can she manage being in two clubs at the same time, or is she spreading herself too thin? And will her Cupcake Club friends still be as sweet to her, or will Mia have to choose between cupcakes and fashion plates?

When Katie's best friend Callie leaves her for a clique called the Popular Girls Club on the first day of middle school, Katie decides to find a group that she can join.