This document provides definitions and explanations of key concepts related to nursing administration and management. It discusses definitions of administration from various authors that emphasize organizing human and material resources to achieve goals. Management is defined as directing resources through planning, organizing, staffing, leading, and controlling to efficiently accomplish objectives. The elements of administration are summarized as planning, organizing, staffing, directing, coordinating, reporting and budgeting (POSDCORB). The differences between administration and management are outlined.