I found the book They Snooze You lose by Burmark very easy to read and useful for us as educators. Its first chapter “Tweaking Presentations” focuses on three important characteristics of presentations, which are templates, color and type.
The author invite us to carefully select the template we will use in our presentation by making sure the visuals draw the eye to the left of the screen, since we read from left to right. Besides that, we need to be aware that the template’s decorations or embellishments are not “so distracting” that the audience focuses more on them than in the topic of our presentation.
Obviously our presentations will be more attractive and interesting if we add color to them. It is not only the fact to add any color to our presentation, but to choose the more adequate colors. Burmark mentions that when it comes to quick vision, the human eye sees faster the yellow color. According to Wagner, warm colors (yellows, reds) are seen before cool colors (greens, blues.1 Therefore, when making a presentation we should choose cool colors for the background and warm colors for the text.
Regarding the type of our presentation, we need to reduce the number of lines in our slides in order to use the appropriate font size. According to Burmark, the typeface we selected needs to match our content. Also the typeface we use should be easy to read (lowercase) and with enough space between the letters.
Personally I have seen presentations that have color and different fonts, yes, but 50 different colors and/or fonts in the same slide it is not OK!... that makes the presentation completely awful and distracting at the same time. As presenters we need to make sure to choose the right colors and fonts to make our presentations appealing to the public.
1 Wagner, Carlton, Color Power (Chicago: Wagner Institute for Color Research, 1985), p 103.