Subillustration

Subillustration is a term used to describe a secondary or supporting visual element within a larger illustrative work. It serves to elaborate on, clarify, or enhance the main illustration without being the primary focus. These smaller images can take many forms, such as diagrams, callouts, insets, or decorative motifs. They are often employed to provide additional detail, show a process, or offer an alternative perspective that would be difficult to convey within the main image alone. The purpose of a subillustration is to enrich the overall understanding and aesthetic of the artwork.

In practice, subillustrations are common in various fields. Technical manuals frequently use them to break down complex machinery or instructions into manageable parts. Educational materials might incorporate them to illustrate specific concepts or historical events. Even in fictional works, subillustrations can add depth, perhaps depicting a map of a fictional world or a close-up of a significant object. The relationship between the subillustration and the main illustration is one of complementarity; the subillustration supports and expands upon the narrative or information presented by the primary visual. The effectiveness of subillustration relies on its clear integration and its ability to seamlessly contribute to the overall message.