One of the most anticipated books of summer 2021. -Apple Books For Jax Hall, all-but-dissertation in mathematics, slinging drinks and serenading patrons at a piano bar is the perfect remedy for months of pandemic anxiety. He doesn't expect to end up improvising on stage with pop violinist Aria Darvish, but the attraction that sparks between them? That's a mathematical certainty. If he can get Ari to act on it, even better...