Like a beacon across the generations, Douglas McGregor's insights into what he termed "the human side of enterprise" continue today to reveal deep truths about people and organizations. McGregor begins this 1960 management classic with a seemingly simple question: "What are your assumptions (implicit as well as explicit) about the most effective way to manage people?" At the time, this question drove a fundamental transformation in the work of scholars and practitioners alike. It is just as pertinent today. - Introduction to the annotated edition.