Management involves handling or supervising people or tasks effectively. It comes from the Latin words "manus" meaning hand and "agere" meaning to act. Management has been defined as forecasting, planning, organizing, commanding, coordinating, and controlling by Henry Fayol. Principles of management provide fundamental truths and rules derived from practical experience to guide managers in achieving directional results without relying solely on trial and error. Key principles include universal application, flexibility, and being behavioral in nature.