Preservapedia:Alternative text for images

Alternative text is text that serves an equivalent purpose and provides the same essential information as an image in an article, and is intended for text-only users. It should preferably be short, and co-located with the image. If this is not practical, for example because the image presents a lot of information, then a very brief description of the image or overview of the information should be given and a longer text alternative offered elsewhere. Absent or unhelpful alternative text is a source of frustration for blind users of the Web.