Emi and the Secret Club of Supergirls is a children’s book series created by Polish author Agnieszka Mielech and illustrated by Magdalena Babińska. Recommended for readers aged 6 to 12, the series follows Emi, an imaginative girl who forms a club with her friends to solve mysteries, undertake secret missions and explore nearby and faraway places. The group includes girls with different interests and personalities, as well as one boy, reflecting the club’s belief that everyone deserves a chance to join.

Across more than twenty books and audiobooks, the stories combine friendship, curiosity, humour and adventure, and are designed to encourage children to enjoy reading. The brand’s website introduces the characters and their world through story details, fun facts and fan-focused content. Visitors can browse books and merchandise, learn about the creators, and find resources for schools and libraries, media and fans.

A newsletter offers updates about news, promotions, products and services, along with occasional surprises. The series has sold nearly one million copies, according to the website