A caption is a brief explanation or description accompanying an image, illustration, or video. It helps viewers understand the context or significance of the visual content. Captions can be found in books, articles, social media posts, and various forms of media, providing clarity and enhancing the viewer's experience. Captions often include information such as the subject of the image, the location, or the date it was taken. They can also add humor or commentary, making the content more engaging. In the context of photography, journalism, or social media, effective captions can significantly influence how the audience perceives the visual material.