[The human relations movement ] will bring to bear existing and newly developed theories, methods, and techniques of the relevant social sciences upo… - Robert Tannenbaum

Human relations today has its iconoclasts and believers, critics and supporters, detractors and zealots. This is not surprising; for during the past twenty years, numerous research groups have burgeoned, and many individual investigators have become most active in the field. There has been a fantastic outpouring of professional and popular books and articles, untold new or revised college and university offerings, a plethora of in-plant training courses, a growing number of training laboratories and seminars, and a seemingly ever-increasing schedule of meetings and speeches—all concerned, in whole or in part, with "human relations."

Leadership is interpersonal influence, exercised in a situation, and directed, through the communication process, toward the attainment of a specified goal or goals.

If they can see them as forces that consciously or unconsciously influence their behavior, they can better understand what makes them prefer to act in a given way. And understanding this, they can often make themselves more effective.