This document discusses web accessibility and provides guidelines for making websites accessible to people with disabilities or other limitations. It defines web accessibility and discusses why it is important. Some key points include: - Web accessibility means people are able to use websites even under limiting conditions like low vision or inability to use a mouse. It involves making sites perceivable, operable, and understandable. - Over 1 billion people use the internet worldwide, including many with disabilities, so accessibility increases a site's reach and potential users. It also has legal and public relations benefits. - Standards like WCAG and Section 508 provide guidelines for making sites accessible through proper HTML markup, text equivalents for images/multimedia, color contrast, and more