What types of presentation aids can I use?

Now that you know why you are using a presentation aid, let’s look at your options.

Slideshows

In most careers in business, industry, and other professions for which students are preparing themselves, computer-based presentation aids are the norm today. Whether the context is a weekly department meeting in a small conference room or an annual convention in a huge amphitheater, speakers are expected to be comfortable with using slideshow software to create and display presentation aids.

Slides show design and theme should be consistent. It should be easy to read, free of clutter, and enhance your message. Below are several common slideshow software programs.

Slide Layout

It is easy to simply open up your slideware and start typing in the bullet points that outline your talk. If you do this, you will likely fall into the traps for which PowerPoint is infamous. Presentation design experts Reynolds and Duarte both recommend starting with paper and pen. This will help you break away from the text-based, bullet-filled slide shows we all dread. Instead, consider how you can turn your words and concepts into images. Don’t let the software lead you into making a mediocre slide show.

Regarding slide design, focus on simplicity. Don’t over-crowd your slide with text and images. Cluttered slides are hard to understand (see Figure 3.1). Leaving empty space, also known as white space, gives breathing room to your design. The white space actually draws attention to your focus point and makes your slide appear more elegant and professional. Using repetition of color, font, images, and layout throughout your presentation will help tie all of your slides together. This is especially important if a group is putting visuals together collaboratively. If you have handouts, they should also match this formatting in order to convey a more professional look and tie all your pieces together.

Another general principle is to use contrast to highlight your message. Contrast should not be subtle. Make type sizes significantly different. Make contrasting image placements, such as horizontal and vertical, glaringly obvious. A general principle to follow: if things are not the same, then make them very, very different, as in Figure 3.3.

A common layout design is called the rule of thirds. If you divide the screen using two imaginary lines horizontally and two vertically, you end up with nine sections. The most visually interesting and pleasing portions of the screen will be at the points where the lines intersect.

Aligning your text and images with these points is preferred to centering everything on the screen. See Figure 3.4. Feel free to experiment with the right and left aligned content for contrast and interest. Sticking with a centered layout means more work trying to make the slide interesting.

Understanding how people view images (and thus slides) can help you direct the viewer’s attention to the main point of your slide. In countries that read text from left to right and top to bottom, like English-speaking countries, people tend to also read images and slides the same way. Starting in the upper left of the screen, they read in a Z pattern, exiting the page in the bottom right corner unless their vision is side-tracked by the objects they are looking at (as in Figure 3.5).

Viewers’ eyes are scanning from focus point to focus point in an image, so you need to consciously create visual cues to direct them to the relevant information. Cues can be created subtly by the placement of objects in the slide, by showing movement, or more obviously by using a simple arrow. Make sure all people and pets are facing into your slide and preferably at your main point, as in Figure 3.6. If your slide contains a road, path, car, plane, etc., have them also facing into your slide. When the natural motion or gaze of your images points away from your slide, your viewers look that way too. Being aware of this and addressing the natural tendencies of people when viewing images can help you select images and design slides that keep the viewer engaged in your message.

Text

Nothing is more hotly debated in slide design than the amount of text that should be on a slide. Godin says “no more than six words on a slide. EVER.” Other common approaches include the 5×5 rule—5 lines of text, 5 words per line—and similar 6×6 and 7×7 rules. Even with these recommendations, it is still painfully common to see slides with so much text on them that they can’t be read by the audience. The type has to be so small to fit all the words on the slide that no one can read it. Duarte keenly points out that if you have too many words, you no longer have a visual aid. You have either a paper or a teleprompter, and she recommends opting for a small number of words.

Once you understand that the words on the screen are competing for your audience’s attention, it will be easier to edit your slide text down to a minimum. The next time you are watching a presentation and the slide changes, notice how you aren’t really grasping what the speaker is saying, and you also aren’t really understanding what you are reading. Studies have proved this split-attention affects our ability to retain information; so when presenting, you need to give your audience silent reading time when you display a new slide. That is: talk, advance to your next slide, wait for them to read the slide, and resume talking. If you consider how much time your audience is reading rather than listening, hopefully you will decide to reduce the text on your slide and return the focus back to you, the speaker, and your message.

There are several ways to reduce the number of words on your page, but don’t do it haphazardly. Tufte warns against abbreviating your message just to make it fit. He says this dumbs down your message, which does a disservice to your purpose and insults your audience’s intelligence. Instead, Duarte and Reynolds recommend turning as many concepts as possible into images. Studies have shown that people retain more information when they see images that relate to the words they are hearing. And when people are presented information for a very short time, they remember images better than words.

The ubiquitous use of bulleted lists is also hotly debated. PowerPoint is practically designed around the bulleted-list format, even though is it regularly blamed for dull, tedious presentations with either overly dense or overly superficial content. Mostly this format is used (incorrectly) as a presenter’s outline. “No one can do a good presentation with slide after slide of bullet points. No One.” Reserve bulleted lists for specifications or explaining the order of processes. In all other cases, look for ways to use images, a short phrase, or even no visual at all.

Quotes, on the other hand, are not as offensive to design when they are short, legible, and infrequently used. They can be a very powerful way to hammer a point home or to launch into your next topic. See Figure 3.10 for an example. If you do use a quote in your slide show, immediately stop and read it out loud or allow time for it to be read silently. If the quote is important enough for you to include it in the talk, the quote deserves the audience’s time to read and think about it. Alternately, use a photo of the speaker or of the subject with a phrase from the quote you will be reading them, making the slide enhance the point of the quote.

Images

Images can be powerful and efficient ways to tap into your audience’s emotions. Use photographs to introduce an abstract idea, to evoke emotion, to present evidence, or to direct the audience attention, just make sure it is compatible with your message. Photos aren’t the only images available. You might consider using simplified images like silhouettes, line art, diagrams, enlargements, or exploded views, but these should be high quality and relevant. Simplified can be easier to understand, particularly if you are showing something that has a lot of detail. Simple images also translate better than words to a multicultural audience. In all cases, choose only images that enhance your spoken words and are professional-quality. This generally rules out the clip art that comes with slideware, whose use is a sign of amateurism. Select high-quality images and don’t be afraid to use your entire slide to display the image. Boldness with images often adds impact.

When using images, do not enlarge them to the point that the image becomes blurry, also known as pixelation. Pixelation, (Figure 3.11) is caused when the resolution of your image is too low for your output device (e.g. printer, monitor, projector). When selecting images, look for clear ones that can be placed in your presentation without enlarging them. A good rule of thumb is to use images over 1,000 pixels wide for filling an entire slide. If your images begin to pixelate, either reduce the size of the image or select a different image.

Never use an image that has a watermark on it, as in Figure 3.2. A watermark is text or a logo that is placed in a digital image to prevent people from re-using it. It is common for companies that sell images to have a preview available that has a watermark on it. This allows you, the potential customer, to see the image, but prevents you from using the image until you have paid for it. Using a watermarked image in your presentation is unprofessional. Select another image without a watermark, take a similar photo yourself, or pay to get the watermark-free version.

You can create images yourself, use free images, or pay for images from companies like iStockphoto for your presentations. Purchasing images can get expensive quickly, and searching for free images is time consuming. Be sure to only use images that you have permission or rights to use and give proper credit for their use. If you are looking for free images, try searching the Creative Commons database for images from places like Flickr, Google, and others. The creators of images with a Creative Commons License allow others to use their work, but with specific restrictions. What is and isn’t allowed is described in the license for each image. Generally, images can be used in educational or non-commercial settings at no cost as long as you give the photographer credit. Also, images created by the U.S. government and its agencies are copyright free and can be used at no cost.

One final consideration with using images: having the same image on every page, be it part of the slide background or your company logo, can be distracting and should be removed or minimized. As mentioned earlier, the more you can simplify your slide, the easier it will be for your message to be understood.

Backgrounds and Effects

PowerPoint and other slideware has a variety of templates containing backgrounds that are easy to implement for a consistent slide show. Most of them, however, contain distracting graphics that are counter to the simplicity you are aiming for in order to produce a clear message. It is best to use solid colors, if you even need a background at all. For some slide shows, you can make the slides with full-screen images, thus eliminating the need for a background color.

Graphic design is the paradise of individuality, eccentricity, heresy, abnormality, hobbies and humors. ~ George Santayana

Should you choose to use a background color, make sure you are consistent throughout your presentation. Different colors portray different meanings, but much of this is cultural and contextual, so there are few hard and fast rules about the meaning of colors. One universal recommendation is to avoid the color red because it has been shown to reduce your ability to think clearly. Bright colors, such as yellow, pink, and orange, should also be avoided as background colors, as they are too distracting. Black, on the other hand, is generally associated with sophistication and can be a very effective background as long as there is sufficient contrast with the other elements on your slide.

When designing your presentation, it is tempting to show off your tech skills with glitzy transitions, wipes, fades, moving text, sounds, and a variety of other actions. These are distracting to your audience and should be avoided. They draw attention away from you and your message, instead focusing the audience’s attention on the screen. Since people naturally look at what is moving and expect it to mean something, meaningless effects, no matter how subtle, distract your audience, and affect their ability to grasp the content. Make sure that all your changes are meaningful and reinforce your message.

Graphs and Charts

 

If you have numerical data that you want to present, consider using a graph or chart. You are trying to make a specific point with the data on the slide, so make sure that the point—the conclusion you want your audience to draw—is clear. This may mean that you reduce the amount of data you present, even though it is tempting to include all of your data on your slide.

It is best to minimize the amount of information and focus instead on the simple and clear conclusion. You can include the complete data set in your handout if you feel it is necessary. Particularly when it comes to numerical data, identify the meaning in the numbers and exclude the rest. “Audiences are screaming ‘make it clear,’ not ‘cram more in.’ You won’t often hear an audience member say, ‘That presentation would have been so much better if it were longer.” In some cases you can even ditch the graph altogether and display the one relevant fact that is your conclusion.

Different charts have different purposes, and it is important to select the one that puts your data in the appropriate context to be clearly understood. Pie charts show how the parts relate to the whole and are suitable for up to eight segments, as long as they remain visually distinct. Start your first slice of the pie at 12:00 with your smallest portion and continue around the circle clockwise as the sections increase in size. Use a line graph to show trends over time or how data relates or interacts. Bar charts are good for showing comparisons of size or magnitude and for showing precise comparisons. There are other types of charts and graphs available, but these are the most common.

When designing charts, one should use easily distinguishable colors with clear labels. Be consistent with your colors and data groupings. For clarity, avoid using 3-D graphs and charts, and remove as much of the background noise (lines, shading, etc.) as possible. All components of your graph, once the clutter is removed, should be distinct from any background color. Finally, don’t get too complex in any one graph, make sure your message is as clear as possible, and make sure to visually highlight the conclusion you want the audience to draw.

Charts

A chart is commonly defined as a graphical representation of data (often numerical) or a sketch representing an ordered process. A chart can take the form of a diagram or a picture or a graph.

A decision tree is one example of a chart. Decision trees are useful for showing the relationships between ideas. The below example shows how a decision tree could be used to determine the appropriate weather for playing baseball. As with the other types of charts, you want to be sure that the information in the chart is relevant to the purpose of your speech and that each question and decision is clearly labeled.

A graph is considered a type of chart illustrating a pictorial representation of the relationships of quantitative data using dots, lines, bars, pie slices, and the like. Graphs show the variation in one variable in comparison with that of one or more other variables. Where a statistical chart may report the mean ages of individuals entering college, a graph would show how the mean age changes over time. A statistical chart may report the number of computers sold in the United States, while a graph will show the breakdown of those computers by operating systems such as Windows, Macintosh, and Linux. Public speakers can show graphs using a range of different formats. Some of those formats are specialized for various professional fields. Very complex graphs often contain too much information that is not related to the purpose of a student’s speech. If the graph is cluttered, it becomes difficult to comprehend.

In this section, we’re going to analyze the common graphs speakers utilize in their speeches: line graphs, bar graphs, and pie graphs.

In the world of presentation aids, representations are designed to represent real processes or objects. Often, speakers want to visually demonstrate something that they cannot physically bring with them to the speech. Maybe you’re giving a speech on the human brain, and you just don’t have access to a cadaver’s brain. Instead of bringing in a real brain, you could use a picture of a brain or an image that represents the human brain. In this section, we’re going to explore four common representations: diagrams, maps, photographs, and video or recordings.

Objects or Models

Objects and models are other forms of presentation aid that can be very helpful in getting your audience to understand your message. Objects are anything you could hold up and talk about during your speech. If you’re talking about the importance of not using plastic water bottles, you might hold up a plastic water bottle and a stainless steel water bottle as examples. If you’re talking about the percussion family of musical instruments and you own (and can play) several different percussion instruments, you can show your audience in person what they look like and how they sound.

Models are re-creations of physical objects that you cannot have readily available with you during a speech. If you’re giving a speech on heart murmurs, you may be able to show how heart murmurs work by holding up a model of the human heart.

Animals