No longer mere company "assets," today's in-demand workers have become free agents who can and do invest their ability, behavior, and energy-their human capital-in the companies of their choice. And the companies they choose, the companies that will win in the marketplace, will be the ones that know how to create and deliver the best return on that investment. In this book, author Thomas O. Davenport explores the dynamics of this emerging workplace phenomenon and describes specific strategies that companies and workers can use to build mutually beneficial relationships in the new knowledge economy.