Cleanliness is a state of being clean and free from dirt, and the process of achieving and maintaining that state. Coursera's cleanliness catalogue teaches you about the importance of hygiene and cleanliness in various contexts including personal, environmental, and workplace cleanliness. You'll learn everything from understanding the science behind cleanliness, implementing efficient waste management systems, dealing with hazardous substances, to promoting hygiene in community and professional settings. This knowledge will help you maintain a healthy, productive environment whether you're a homemaker, a professional in the hospitality industry, a healthcare worker, or simply an individual aiming to improve your personal hygiene and surroundings.