Photo captions are the most read body type in a publication. Of all the information content, only the titles of articles and abstracts have higher readership than captions. It follows that standards of accuracy, clarity, completeness and good writing are as high for captions as for other parts of the paper. As with headlines, captions must be crisp; as with articles, they must be readable and informative.
Figure Captions: Captions describe the photo or graph. Descriptions or discussion of the content of the Figure should be handled in the text of the article.