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Why Visual Aids Need to Be Less Visual by Philip Yaffe

I was recently invited to a presentation by an accomplished speaker. Needless to say, his speech was well structured, his manner relaxed and confident, his eye contact and body language excellent, etc. He normally spoke without slides, but this time he felt they would reinforce and illuminate his message. They didn’t. In fact, they were more of a hindrance than a help.

This is not an isolated case; it is typical. Over nearly 40 years as a communication consultant, I have seen countless essentially good speakers give a very good oral presentation, only to undermine it with slides that detract rather than add.

Why does this happen?

Too often speakers fail to recognize that slides are an integral part of the presentation, not an add-on. Likewise, they fail to recognize that the principles and practices that underpin the oral component of the presentation are essentially the same as those that should underpin the visual component.

As a result, the slides seem to be conceived with no real thought or structure. Having no coherent schema or checklist to guide them, otherwise accomplished speakers appear to design their slides according to whatever pleases them. They make little effort to â€please†the listeners, i.e. enhance the communication, which is the only real reason for using slides in the first place.

So how can you design and use slides that add to your presentation rather than detract from it?

Before you can do anything well, you need to understand why you are doing it. Slides should achieve two fundamental objectives.

1. Help the speaker deliver a better presentation

2. Help the listeners better understand the presentation

Both criteria must be taken fully into account. It is not enough for the speaker to be â€satisfied†with the slides. You must also be certain that they will truly help your listeners understand and assimilate what you are trying to communicate.

Basic Principles

There is a false belief that most slides - if not all of them - should be illustrated. If your objective is to show the beauty of a tourist destination, the genius of an architectural concept, the difficulty of a manufacturing procedure, etc., then illustrations make sense. But illustrations can be distracting and therefore detrimental.

Don't believe it? Then try this experiment. Open a newspaper or magazine to any page with a photo. Try looking only at the upper Left Hand corner of the photo and nowhere else. It is virtually impossible. The moment the eye is confronted with a photo, drawing, diagram, etc., there is a natural tendency to wander all over it.

Many speakers commit the error of using illustrations when they really aren't needed. Imagine a speaker telling the audience to look only at the center of a photograph or complex diagram, because that is the only part he wishes to talk about. But while he is talking about the center, much of the time the audience will be looking somewhere else, because they can't help it. This constant movement around the image results in split attention, diminishing the impact of the speaker's comments.

The adage that "a picture is worth a thousand words" is undeniably true. But this is exactly the problem. An image often says much more than what the speaker wants. So while you may wish to use only 300 or 400 of those "words" to make your point, the audience will be absorbing all one thousand of them. You have no idea how they may be interpreting - or misinterpreting - this extraneous information. But you can be certain that whatever it is, it is not helping your cause

In short, if your presentation does not naturally call for images, illustrated slides should be avoided. If it does naturally call for images, use slides with as little extraneous content as possible.

In the debate "to illustrate" or "not to illustrate", the question invariably arises: Aren't text slides boring? In a word: No. For two reasons:

1. Text is visual. The fact that the audience is looking at it makes it a kind of illustration. Therefore, full care should be taken to arrange the text on the slide to maximize attractiveness and ensure readability.

2. Only the speaker can be boring. The value of slides - text, illustrated, or combined †totally depends on how effectively the speaker designs and uses them.

Elements of Effective Text Slides

Effective text slides generally consist of two parts.

1. Heading

The heading announces the subject to be discussed, thereby preparing the listeners for the information they are about to receive.

2. Body

The body serves to examine specific aspects of the subject announced in the heading. This is the real focus of the slide, and where the most care must be taken.

Whenever possible, the body should first make a general statement, which serves to emphasize a single key idea. The rest of the body should then reinforce the key idea by supporting or enlarging on the general statement. This often takes the form of bullet points.

Heading

General Statement
†Support info
†Support info
†Support info
†Support info

Writing the Text

Let’s agree that the moment the slide appears on the screen, people will want to read it. Let’s also agree that they read at different rates, so some will finish sooner than others. Finally, let’s agree that those who finish rapidly are likely to let their minds wander to thoughts other than the presentation.

This implies loss of attention, which is the last thing you want to happen. So how do you prevent it?

One way is to keep the quantity of text on the screen to an absolute minimum. The less people have to read, the more likely they will finish more or less together, so there is less opportunity for their minds to wander.

Minimal text on the screen confers another significant advantage. It encourages people to immediately re-focus their attention on the speaker for elaboration of what they have just read. To abuse a metaphor, you could say the slide is the appetizer and what you say about it is the main course. What could be better than that!

Extremely short text is often referred to as â€telegraph styleâ€, because this is how people wrote telegrams in the past to save money on the number of words. it basically means employing sentence fragments rather than full sentences, eliminating definite articles, using abbreviations, etc. Some speakers even delete much standard punctuation, notably periods, commas and semicolons at the end of bullet points. Consider this example.

A. Conventional

Style of the Text

The style of the text should be telegraphic (key words) in order to:

†Minimize how much text the audience has to read on the screen

†Refocus the audience's attention on the speaker so that he can elaborate on what they have read on the screen

B. Telegraphic

Style of Text

Telegraphic (key words) to:

†Minimize text the audience must read

†Refocus audience attention on speaker for elaboration

Both of these slides give essentially the same information; however, they do not have the same impact. Example A is heavy and tedious, and takes considerable time to read. Example B is light and crispy, and takes only moments to read. Over a series of 20 - 40 slides, which would you prefer?

Choice of Colors

Like every other aspect of a slide, its colors should aid understanding. Colors must not be chosen for their â€esthetic valueâ€, because this often impedes understanding. Three of the most common mistakes are:

1. Color combinations that damage readability

The classic example is white letters on a red background. The red tends to â€swallow†the white, making the text difficult to read. Other typically poor combinations are white on blue, yellow on blue, blue on yellow, and red on black.

Choose color combinations that reinforce readability.

2. Too many colors

Many colors on the screen may be â€attractiveâ€, but they are also confusing. In general, limit colors to three or four. Any more than this is almost certain to be detrimental.

3. Color coding

Color coding is the practice of identifying related data on graphs and charts by assigning them the same color. This is a good idea in books, but not on slides.

First, it almost invariably requires more than four colors, often leading to poor combinations for readability (e.g. white on blue, red on black, etc.).

More importantly, it causes the eye to trace out the different color trails on the slide while the speaker is talking. This means the listeners will not really be listening to what you are saying, because their attention will either be split or totally somewhere else.

Backgrounds

The terms â€foreground†and â€background†clearly indicate their purpose. The foreground contains materials put up front where they can be easily seen, because they are the stars of the slide.

The background is there to support the foreground, not to compete with it. In particular, the background should reinforce the text. Therefore keep the background simple. Avoid complex patterns and other â€esthetic†artifices that:

†Compete with the text for listener attention

†Make the text difficult - and sometimes impossible - to read

Animation

Until fairly recently, slides were either 35 mm or overhead transparencies. By their very nature, they were fixed and couldn’t move. With today’s computer slide software, animation is not only possible, it is temptingly easy.

Don’t be lured. Use animation to highlight key ideas, not to entertain.

If you are showing a flow chart, animation can emphasize the flow. If you are showing bullet points, animation can reinforce the importance of the general statement and then each piece of data supporting it.

Animation used for entertainment usually distracts from the idea or ideas the slide is supposed to convey. Flashing lights, spinning texts, cartoon characters moving in the background, and other â€theatrical effects†may charm the eye, but they damage comprehension.

Philip Yaffe is a former reporter/feature writer with The Wall Street Journal and a marketing communication consultant. He currently teaches a course in good writing and good speaking in Brussels, Belgium. In the â€I†of the Storm: the Simple Secrets of Writing & Speaking (Almost) like a Professional, his recently published book, is available from Story Publishers in Ghent, Belgium (storypublishers.be) and Amazon (amazon.com).

For further information, contact:

Philip Yaffe
Brussels, Belgium
Tel:32 (0)2 660 0405
phil.yaffe@yahoo.com

Philip Yaffe is a former writer with The Wall Street Journal and international marketing communication consultant. He now teaches courses in persuasive communication in Brussels, Belgium. Because his clients use English as a second or third language, his approach to writing and public speaking is somewhat different from other communication coaches. He is the author of In the â€I†of the Storm: the Simple Secrets of Writing & Speaking (Almost) like a Professional. Contact: phil.yaffe@yahoo.com

Article Source: http://www.earticlesonline.com/Article/Why-Visual-Aids-Need-to-Be-Less-Visual/289819