This document provides an overview of posture, including definitions, types, mechanisms, patterns, principles of re-education, and presentation of good posture. It defines posture as the body's position either at rest or during movement. There are inactive postures for rest and active static and dynamic postures that require muscle coordination. Posture is maintained through complex reflexes involving muscles, eyes, ears, and joints. Good posture is efficient with minimal effort, while poor posture is inefficient and causes unnecessary muscle strain. Re-education of posture focuses on identifying and treating causes, gaining patient cooperation, relaxation/mobility exercises, and establishing new posture habits through repetition and education.