The document discusses web accessibility, which refers to enabling all people to access website content regardless of ability. It notes that approximately 10 million people in the UK have disabilities but websites are often poorly designed and do not account for varying abilities. The document outlines guidelines for making websites accessible to people with disabilities, including those with visual, hearing, physical, cognitive and motor impairments. It emphasizes that accessibility should not be seen as optional or expensive, but is possible with the right knowledge and priorities.