The Rosie Project: A Novel by Simsion, Graeme (2014) Paperback

Don Tillman is a brilliantly logical genetics professor who's decided that love requires the same methodical approach as science—so he creates The Wife Project with very specific criteria for his ideal match. Enter Rosie, a spirited and chaotic woman who breaks every single one of his rules, yet somehow becomes impossible to ignore. When she enlists his DNA expertise to help track down her biological father, Don finds himself swept into her world, discovering that the heart doesn't always follow the data. It's a heartwarming, laugh-out-loud romance about how the most meaningful connections often come from the most unexpected places.