From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Lions and tigers and bears oh my!Karen’s class is studying wild animals. They are going to see some at the zoo. Karen and her friends can’t wait for their field trip. But then the "mean green bug" hits Ms. Colman’s class. Everyone is getting the flu! Karen hopes the school trip doesn’t get canceled. But she doesn’t want to give the animals the bug, too!

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Welcome, Adelaide Sidney! There is a new student in Karen’s class. Her name is Addie. She is funny and very talkative. And she has cerebral palsy. Karen feels sorry for Addie. She thinks Addie has no friends just because she sits in a wheelchair. So Karen decides to make Addie be her best friend. But Karen won’t leave Addie alone. And now Karen might not be Addie’s friend at all!

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! "Play the ringtoss!"One day Karen, Hannie, and Nancy are bored, bored, bored. They can’t go roller-skating, and the playground is too far away. So Karen decides to have a carnival, with all kinds of games and prizes! What will the girls do with the money they make from their carnival? Hannie wants roller skates--but Karen can think of something even better!

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! U R 2 Nice 2 B 4-Gotten!Some kids (like Hannie) think Amanda is a snob. But Karen doesn’t care. She and Amanda are friends. They have lots of fun together, driving for pennies in the pool and dressing up like Lovely Ladies. But now there’s bad news! Amanda’s family is moving away. Hannie thinks this is funny. But Karen is so sad. How can she say good-bye to one of her best friends?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! "Stoneybrook Academy is closed today."Karen likes school, but she can’t wait for a snow day! Karen’s got big plans for the Three Musketeers: sledding, and ice skating, and maybe even a snowball fight. But when Karen’s snow day finally comes, she gets herself in a big mess. She and Hannie and Nancy have to help Karen’s brother shovel snow. All day long! What’s going to happen to Karen’s special snow day?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Miss Karen’s SchoolKaren is starting her own school. She can’t wait to teach her little brother Andrew and his friends how to read and write. But Karen’s students think she's bossy. They won’t listen to her. They won’t do their homework. And now her students are going on strike. How is Karen going to run her school?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Dear Maxie...The kids in Ms. Colman’s class are writing letters to some second-graders in New York City. Karen thinks having a pen pal is so, so cool. But then her pen pal turn out to be a big bragger. Mazie says she is better than Karen at everything. This makes Karen so mad. So she starts making things up. But now Mazie’s class is coming to visit. And Karen is in gigundo trouble!