a picture speaks a thousand words . . .
Graphics - the key to data communication. The human mind can grasp and remember information presented in graphical format, whereas words and text are quickly forgotten. Advertisers have long been aware of this and spend billions to ensure that their graphics departments are top-notch.
Yet most people, in their jobs especially - document their efforts with 99% text and throw in a borrowed pic every once in a blue moon. Even Engineers, rarely have diagrams of their customer networks, instead choosing spreadsheets because they are "easy". Well that has to stop - at least for "you" - and here you will find a plethora of info to allow you to finally feel comfortable and confident with your graphics ability.
A good, understandable document will be comprised of 25% or more of diagrams and images. My motto is "a pic per page".