This document outlines the functions, roles, and skills of a manager, emphasizing their responsibilities in planning, organizing, motivating, measuring performance, and developing people within an organization. It categorizes managerial levels into top-level, middle-level, and first-line managers, detailing their specific duties and examples of positions held within each level. Additionally, it discusses managerial roles as defined by Henry Mintzberg, which include interpersonal, informational, and decisional roles, along with essential skills such as technical, human, and conceptual skills.