True
Other than words of speech, presentation aids are items used to support what the speaker is relaying. They can be visual or audio aids or other technologies that are supported. Highlighting new points with appropriate and short phrases, rather than complete sentences is important to a good presentation aid.
Images or photographs on the other hand provide a picture of reality and are used to illustrate a point, action, or evoking an emotion. It shows an important but an unfamiliar detail.