A New York Times bestseller! Perfect for fans of The Babysitters Club and anyone interested in computer science, this series is published in partnership with the organization Girls Who Code.
Loops, variables, input/output – Lucy can’t wait to get started with the new coding club at school. Finally, an after school activity that she’s really interested in. But Lucy’s excitement turns to disappointment...

Sophia and her coding club BFFs have the best time together. Sure, they work on coding projects, but mostly they gossip about crushes, eat cookies, and do totally silly impersonations. Now they're about to participate in their first hackathon--a full day of coding and meeting other coders--so it's time to step up their game!

The girls in the coding club are preparing their voting app for the school talent show, but when they discover Erin is secretly suffering from anxiety they band together to find her help.