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The Friendship Code #1

by Stacia Deutsch

Book 1 in Girls Who Code

Subject
Computers & Digital Media
Age
6-8 years
Format
Hardcover
Pages
144
Publisher
Penguin Workshop
Size
14.2 cm × 20.6 cm
ISBN
9780399542510
NEW YORK TIMES BESTSELLER • This fun, accessible series is perfect for anyone interested in STEM and coding, published in partnership with the organization Girls Who Code.

“The 'Baby-Sitters Club' for the internet age.”–Glamour.com


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 when she’s put into a work group with girls she barely knows. All she wanted to do was make an app that she believes will help someone very special to her.

Suddenly, Lucy begins to get cryptic coding messages and needs some help translating them. She soon discovers that coding – and friendship – takes time, dedication, and some laughs!

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What reviewers said

“The 'Baby-Sitters Club' for the internet age.”
Glamour.com
“Between the integrated logic and the consciously diverse cast, a wonderful series launch.”
Kirkus Reviews
“An intriguing coding mystery.”
Scholastic Teacher
“The Baby-Sitters Club for Gen Z!”
Parents
“[A] chatty, information-packed reference guide peppered with real examples of women in technology.”
The Austin American-Statesman
“[A] fresh series starter…Readers will appreciate the characters’ diversity of interests and their love of coding…. A complex topic made accessible; recommended for elementary and middle school libraries and for collections that serve ¬budding coders.”
School Library Journal
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© 2026 Peekabooks Inc. All Rights Reserved.