Readability refers to how easy a reader is able to read and understand written text. The principles behind visual illustrations are clarity, precision, efficiency and integrity. Illustrations are a simple and efficient way to convey information to persons of all levels. The choice of illustration should be aimed at emphasizing the writer’s points rather than distract the readers. These days, most of the illustrations are made digitally such as photographs and animations. Illustrations are an integral part in expounding complex technical issues.
Illustrators are used in demonstrating logical and numeric relationships. Graphics offer an easy way of explaining the various steps of a given process than just using words alone. A graphical representation is easier to follow. Using graphical representations saves time and space in description of a progression as they can have various interpretations on the same illustration, for example bar graphs and pie charts. The use of illustrators especially in the beginning of a document or presentation catches the attention of the reader or viewer. In displaying spatial information, graphics are a huge asset as they clarify things more than words ( Mineev, 2019 ). Graphics serves way better with unexperienced readers because they offer a guide in complex issues. Picturizing an idea makes the reader get as close as possible to the reality. Illustrators are a good way to display the unique sections of a document especially where main issues are shaded in a different color. They are also a better way of indicating sequence of events with arrows pointing the direction of flow. Illustration are also an easy way to remember a process or structure.
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The figure in the below link indicates the flow of communication among the different types of computer buses and other components in the computer. It is simple but informative. The arrows clearly indicate the flow of communication to various components. Computer Buses .
References
Mineev, A. I., Darsney, M. R., Denisov, D., & Ravi, O. P. (2019). U.S. Patent Application No. 15/782,346 .