Young Adult Literature; Coming of Age; Family Drama
This book is definitely geared toward young adults, specifically teenage girls. It's an easy read, and the settings and points of view change regularly, helping readers stay interested. Plus the protagonists are stereotypical teenagers, navigating classic teenage problems (like crushes), which makes it clear that young adults are this book's target audience.
It's also a coming of age story, as we watch each girl find her way through her summer. No matter where they go in the world—whether all the way to Greece or just to work at Wallman's—each girl does some serious growing up. By the time summer's ended, every member of the Sisterhood has come into her own and majorly changed, so while they've all still got some maturing to do before they're officially adults, this book definitely lands in the coming of age genre too.
As for the family drama genre, since Carmen's whole story has to do with accepting her dad and her soon to be step-family, and Lena's adventure is caught up in her trip to meet her Greek grandparents, we're going to say that this book gives at least a nod to the genre. It's not a full-fledged family drama—if anything, it's a drama about friends—but family plays a big enough role that if you're looking for a book structured around blood relations, you should find plenty to satisfy that itch within its pages.