Illustrations and technical graphics are essential to any technical documentation. They assist users' understanding by simplifying complex content through clear, understandable and effective information. A primary objective of technical documentation is to ensure that users use products effectively and safely. Graphics and illustrations assist in accomplishing this objective. Striking the right balance between text and graphics enables documentation to be effective support to product use. This article recommends a few guidelines and best practices to adopt when working with illustrations and graphics in technical documents.
Chava, Uday. Indus (2005). Design>Graphic Design>Technical Illustration