A study done by Wharton School Of Business showed that the use of visuals reduced meeting times by 28 percent. Another study found that audiences believe presenters who use visuals are more professional and credible than presenters who merely speak. Other research indicates that meetings and presentations reinforced with visuals help participants reach decisions and consensus more quickly.
A presentation program, such as Microsoft PowerPoint, Apple Keynote, OpenOffice.org Impress or Prezi, is often used to generate the presentation content. Modern internet-based presentation software, such as the presentation application in Google Docs and SlideRocket also allow presentations to be developed collaboratively by geographically disparate collaborators. Presentation viewers such as SlideDog can be used to combine content from different presentation programs into one presentation.