In a recent post on constructing effective tables and figures, I noted the need for figures to include captions that “succinctly describe the accompanying content.” In this post, we will discuss the purpose of captions and how to write one that is effective.

It is important to remember that figures should be clearly understood, even in isolation from the rest of the manuscript. The caption provides an opportunity for the author to provide context and connection to the rest of the article, as it relates to the visual element.