挿図

1. Origins, structure, and basic meaning

• Structure: 挿図 is read as そうず and is a noun for an illustration or figure inserted into a text to support its content.
• Basic usage: Use 挿図を担当する for responsibility for the illustrations and 挿図が役に立つ for their completed function.

2. Common pitfalls and similar expressions

• Assignment and finished result
  • 担当する names the role of handling the illustrations, while the subject of 役に立つ is the finished image that aids understanding.
• Main text and inserted figure
  • 本文 is the primary written content; 挿図 is visual material placed within it as support.