Select or create a relevant visual -- a map, timeline, or diagram -- with a caption that adds information beyond what the text already says.
A good visual in an informative report does real work: it shows something words alone explain less clearly, like a map showing the Silk Road's actual geography, or a timeline showing the order of events. A visual that is purely decorative, unconnected to the report's specific facts, does not belong in an informative report.
A strong caption does not just repeat the visual's obvious content ("A map of the Silk Road"). It adds a fact or insight the reader could not get from the image alone, such as explaining why the routes bent the way they did.
Mastery looks like: They choose or create one visual that adds genuine information to the report and write a caption that goes beyond the obvious.
Common stumbles: Picking a decorative visual unconnected to specific facts in the report; writing a caption that just restates what is already visible in the image.