"Can your company win by embracing a higher purpose? The answer is a resounding yes-and this book tells you how. Few management ideas have spread so far and so wide as the Net Promoter System (NPS). Since its introduction two decades ago by author and customer loyalty guru Fred Reichheld, companies across the spectrum have adopted it-from industrial giants such as Mercedes-Benz and Cummins to Silicon Valley sweethearts such as Apple and Google to...