A long description is a detailed text explanation for complex images like graphs, charts

A long description is a detailed text explanation for complex images like graphs, charts, or diagrams, used when simple alt text is insufficient to convey the information. It provides a richer understanding for users, especially those with visual impairments, by translating the image's content into text, potentially including lists and tables for clarity. Long descriptions can be placed on the same page, linked from the page, or provided in a separate document. Key characteristics