Human resources is the set of people who make up the workforce of an organization, business sector, industry, or economy. An narrower concept is human capital, the knowledge and skills which the individuals command. Similar terms include manpower, labor, personnel, associates or simply: people

It was the reality of day-to-day managing, seeing what worked and what didn't, that informed his Principles of Management. By focusing on administrative over technical skills, the Principles are some of the earliest examples of treating management as a profession.