World Quality Day is celebrated annually on November 12th to recognize the importance and benefits of quality. It was established in 1989 by quality organizations from the US, Europe, and Japan. Quality is defined as meeting requirements and fulfilling customer needs. Implementing quality management practices such as planning, assurance, and control can lead to benefits like improved customer satisfaction, reduced costs, and organizational sustainability. Key quality documents include quality plans, manuals, inspection and test plans, checklists, and procedures.