pIf you want to win an election, improve the health of a city, or thrill your customers, you're going to need precision systems-the highly engineered working arrangements of teams, processes, and technologies that put data and AI to work creating the change that leaders want, exactly how they want it. Big Tech firms like Amazon, Google, Apple, and Facebook have mastered their own precision systems, building trillion-dollar businesses using data-driven tools from mass-market nudges to industrial-grade recommendation systems.ppbrppPreciselyem is the playbook for the rest of us. Zachary Tumin and Madeleine Want show how leaders in every domain are taking real-time precision systems into the marketplace, the political race, and the fight for health-from New York-Presbyterian Hospital to the New York Times, the NFL's Baltimore Ravens to BNSF Railroad, the Biden-Harris campaign to the NYPD-to reveal elusive patterns, perform a repetitive task, run a play, or tailor a message, one at a time o