A heartwarming and refreshing debut novel that proves one thing: theres not enough data in the world to predict what will make your heart tick. Stella Lane thinks math is the only thing that unites the universe. She comes up with algorithms to predict customer purchasesa job that has given her more money than she knows what to do with, and way less experience in the dating department than the average thirty-year-old. It doesnt help that Stella has Aspergers and French kissing reminds her of a shark getting its teeth cleaned by pilot fish. Her conclusion: she needs lots of practicewith a professional. Which is why she hires escort Michael Phan. The Vietnamese and Swedish stunner cant afford to turn down Stellas offer, and agrees to help her check off all the boxes on her lesson planfrom foreplay to more-than-missionary position Before long, Stella not only learns to appreciate his kisses, but crave all of the other things hes making her feel. Their no-nonsense partnership starts making a strange kind of sense. And the pattern that emerges will convince Stella that love is the best kind of logic