Illustration Diagrams are graphics that display an image, or images, accompanied by either notes, labels or a legend, in order to:
- Explain concepts or methods
- Describe objects or places
- Show how things work, move or change
- Help provide additional insight into the subject displayed
Images used can come in the form of illustrations, rough sketches, wire-frames or photographs. Therefore, images can be either symbolic, pictorial or realistic. Sometimes enlargements and cross-sections are used for more in-depth analysis or displaying more detail.