The power of words was expressed well in a Look magazine editorial several years ago. They were mar s first immeasurable feat of magic. They liberated us from ignorance and our barbarous past. For without marvelous scribbles which build letters into words, words into sentences, sentences into systems and sciences and creeds, man would be forever confined to the self-isolated prison of the cuttlefish or the chimpanzee. When words alone fail to present the message clearly, visual aids become an important part of the delivery.
Visual aids can help to isolate ideas and clarify problems or relationships.
They can also be very helpful when figures are involved or trends have to be conveyed. In many cases, the audience can grasp a plan, idea, or situation more quickly than when the message is conveyed verbally without benefit or aids. When words will suffice, visual aids should not be used. Dallas Williams questions whether one picture is worth a thousand words as has been sometimes stated. Unfortunately, a presenter can't put all of these immortal words together to convey a single coherent message.