There are many benefits of using graphic designs and visual elements in a technical document. For example, by incorporating graphics in a document allows a reader to visualize better and not just read the old fashion "boring" black and white paper. I believe graphics and visuals are important when people might not understand a language good or not at all, it will allow them to understand at least some -what by viewing the graphics and or visual elements. There are many times when a technical writer will have to list loads of info that would take much time and space to write. When this situation occurs it is appropriate to use a table it will ease the writing process as well as the people interpreting it. There are also many great elements that are good for organizing information that spans over a good amount of time. For instants, pie graphs and bar graphs are good for showing percentages and numbers over years. This is a great way to check patterns in the statistics. I believe a technical writer needs to have good organization skills and have all their facts straight before introducing there graphics or elements. I believe it is also important to make sure the graphics or visual elements do not stray from the reading, you want your audiences to be on the same page.
There are many benefits of using graphic designs and visual elements