This document provides an overview of ISO standards and quality management systems. It discusses that ISO develops international standards to ensure products and services are safe, reliable and of good quality. The main ISO standards discussed are ISO 9000 for quality management systems and ISO 9001 which defines the requirements for a quality assurance system. It also summarizes the seven quality management principles of ISO 9000 which are customer focus, leadership, engagement, process approach, improvement, evidence-based decisions and relationship management. The benefits of establishing a quality management system and adhering to these principles are also highlighted.