"When Mia reads about a Design-a-Dress contest in a magazine for "budding designers ages 12-16" she is excited. But she doesn't realize how much work designing--and sewing--a dress truly is until she starts on her contest entry. While Mia stresses out about all the work she has to do, she and Katie have an argument about, of all things, fashion preferences! Katie offers suggestions that don't really go with the outfit Mia has in mind. And when Mia makes (what she thinks) is an offhand joke about Katie's fashion sense, it turns into a full-blown argument" --

Includes an excerpt from the first book in the Sprinkle Sundays series, Sunday Sundaes.

Worrying about her fashion prospects when she learns that she has to get both braces and glasses, Mia receives help from her stylish mom and is reassured by her Cupcake Club friends that she is still the same old Mia.

Reaching a compromise with her parents when they say she is too young to attend a concert alone, Mia discovers that she is being cyberbullied on social media and teams up with her fellow Cupcake Club members to discover who is behind the attacks.

Mia is excited to enter a Design-a-Dress contest, but she’s pressed for time. And when she tries to finish working on her dress during a Halloween cupcake party, it’s a recipe for disaster! When Mia reads about a Design-a-Dress contest in a magazine for “budding designers ages 12–16” she is excited. But she doesn’t realize how much work designing—and sewing—a dress truly is until she starts on her contest entry. While Mia stresses out about all the work she has to do, she and Katie have an argument about, of all things, fashion preferences! Katie offers suggestions that don’t really go with the outfit Mia has in mind. And when Mia makes (what she thinks) is an offhand joke about Katie’s fashion sense, it turns into a full-blown argument. As Mia tries to finish working on her dress during a kids’ Halloween cupcake party, she realizes that kids plus cupcakes plus silk dresses plus frosting equals a recipe for disaster!

In the midst of a terrible week, Mia receives a lucky charm from her cousins from Puerto Rico, and when her luck turns around, she attributes it to the charm, but when her bad luck returns, she must come to grips with the truth.

Zoey's family life changes forever when her Aunt Lulu has a baby and her dad reveals the identity of the woman he has been dating.

When Emma’s little brother loses the neighbor’s dog, the girls must work together to track her down in the latest addition to the Cupcake Diaries series. When the girls bake cupcakes for a big “Adopt a Pet” fundraiser, Emma’s little brother Jake decides he wants to get a puppy! At first it seems like a really sweet idea, especially when Mia says Jake can walk and groom her two dogs to get used to what needs to be done. But when a neighbor goes on vacation and leaves Jake in charge of his four-legged friend and the dog goes missing, the girls realize perhaps Jake is still too young for a pet. Will the girls find the missing pup before her owner returns?

Worried about meeting her biological father, Katie is blindsided by the news that her mother's boyfriend intends to propose to her mom.

Katie is about to burst when the rest of the Cupcake Club entrusts her with their secrets, but this group of best friends soon realizes that sharing and keeping secrets is what friends are for.