Web Content Accessibili ty Guidelines (WCAG) should be easily understood and used. There are specific guidelines that are important to make the website or web application accessible. When it comes to the principles of accessibility, there are essentially four categories of accessibility that needs to be known for carrying out the accessibility process in a better manner. In this article, you will get to know the four categories of accessibility. What is accessibility? It is a specific process wherein websites or web applications are being made accessible to as many people as possible. Apart from focusing on disabled community in terms of providing them accessible means, accessibility also focuses on slow network connections, mobile devices etc. In many countries, governments have made it mandatory to make the websites or web applications accessible that are in line with that particular country’s accessibility standards and guidelines. For acquiring better services, companies