The Rule Book: A Novel

The Rule Book, a New York Times bestseller and companion novel to the TikTok sensation The Cheat Sheet, is an enemies-to-lovers, second-chance sports romance by the bestselling author of Practice Makes Perfect.

The story centers on Nora Mackenzie, a newly certified sports agent whose first major client is Derek Pender, a star NFL tight end—and her ex-boyfriend from college. Their breakup years ago was messy, and Derek hasn’t forgotten it. Now, holding all the power in their professional relationship, he decides to make Nora’s job as difficult as possible as a form of playful revenge.

But Nora refuses to back down and launches her own counterplan. Their rivalry takes an unexpected turn when a wild night in Las Vegas ends with the two waking up accidentally married. Suddenly, all their professional boundaries and emotional defenses collapse. As they navigate this chaotic new situation, they must decide whether their accidental marriage will jeopardize their careers—or rekindle the deep love they once shared.