Fans of Jennifer Weiner are familiar with her particular brand of women’s lit – strong women characters who overcome adversity and dysfunctional relationships and prove they are more than their appearance – and while The Griffin Sisters’ Greatest Hits does have these elements, it is both a more serious yet less fulfilling book than some of her others. It’s about two sisters, Cassie and Zoe Grossberg, who grow up outside Philadelphia. They are very different – Zoe is outgoing and pretty, while Cassie is awkward, not conventionally attractive and an extraordinarily gifted musician. When the two are discovered singing together by a record producer, their musical career takes off, with Cassie by far the more talented and Zoe the spotlight-seeker. When the sisters both take an interest in one of their bandmates, jealousy, resentment and competition threaten their relationship and lead to tragic outcomes that send the sisters into estrangement and isolation. I enjoyed the story enough, but in the end it fell a little flat. The chapters about the music were too compressed, and Weiner threw too many other issues in – neurodiversity, body shaming, sexual abuse – that distracted from the core of the novel. I haven’t thought much about The Griffin Sisters’ Greatest Hits since I finished the book, the ultimate test for me of a book’s longevity. For Weiner loyalists, this may be a bit of a left turn.